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  1. By: Gardner, Frank D. (Frank Duane), - United States. Office of Experiment Stations.
    Publication info: Porto Rico Agricultural Experiment Station, 1903
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Agricultural Experiment Station  Agricultural experiment stations  Puerto Rico
  2. By: United States. President (1897-1901 : McKinley)
    Publication info: Washington [D.C.], G.P.O, 1901
    Holding Institution: Cornell University Library
    Subjects: Agricultural experiment stations  Agricultural research  Botany  Puerto Rico  
  3. By: United States. President (1897-1901 : McKinley)
    Publication info: Washington [D.C.], G.P.O, 1901
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Agricultural experiment stations  Agriculture  Botany  Puerto Rico  Research
  4. By: Wetmore, Alexander,
    Publication info: 1910-1912
    Holding Institution: Smithsonian Institution Archives
    Subjects: Alaska  Canada  Culebrita, Isla  El Yunque  Field notes  Jackson  King  Ornithology  Photograph albums  Puerto Rico  R弛 Piedras  United States  United States Dept. of Agriculture  Vancouver Island  Virgin Islands  Washington  Wyoming  Yellowstone National Park  
    BHL Collections: Smithsonian Field Books collection
  5. By: Wetmore, Alexander,
    Publication info: 1911-1912
    Holding Institution: Smithsonian Institution Archives
    Subjects: Alaska  Aleutian Islands  Black-and-white photographs  Canada  Chernofski  Field notes  Nanaimo  Ornithology  Puerto Rico  Seattle  Shishaldin Volcano  Tahoma (Ship)  Unalaska  United States  United States National Museum  Vancouver Island  Virgin Islands  
    BHL Collections: Smithsonian Field Books collection
  6. By: Vilaró Díaz, Juan
    Publication info: Habana, Impr. de A. Alvarez y Cía, 1893
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: Cuba  Fishes  Puerto Rico  United States  
    BHL Collections: Publicaciones en Español
  7. By: Van Volkenberg, H. L. (Horatio Luther),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, Office of Experiment Stations, [1939]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Parasites  Puerto Rico  
  8. By: Gundlach, Johannes Christoph,
    Publication info: S.l, s.n, 1878-83
    Holding Institution: Multiple institutions
    Subjects: Amphibians  Birds  Fishes  Mammals  Mollusks  Puerto Rico  
    BHL Collections: Publicaciones en Español
  9. By: Gaffney, Eugene S. - Wood, Roger Conant
    Publication info: New York, NY American Museum of Natural History c2002
    Holding Institution: American Museum of Natural History Library
    Subjects: Bairdemys  Miocene  Paleontology  Puerto Rico  Reptiles, Fossil  Turtles, Fossil  Venezuela
  10. By: Gile, P. L. (Philip Lindsey), - Carrero, J. O. (José Oriol),
    Publication info: Porto Rico Agricultural Experiment Station, 1918
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Guano  Organic wastes as fertilizer  Puerto Rico
  11. By: Koopman, Karl F.
    Publication info: New York, N.Y, American Museum of Natural History, c1975
    Holding Institution: American Museum of Natural History Library
    Subjects: Antilles, Lesser  Bats  Dispersal  Mammals  Puerto Rico  Virgin Islands  West Indies  
  12. By: Tower, Winthrop Vose
    Publication info: San Juan, P. R, The Porto Rico progress publishing co, 1911
    Holding Institution: Cornell University Library
    Subjects: Bees  Puerto Rico  
  13. By: Tower, Winthrop Vose
    Publication info: San Juan, P. R, The Porto Rico progress publishing co, 1911
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Bees  Puerto Rico  
  14. By: Tower, Winthrop Vose
    Publication info: n.p, 1910?
    Holding Institution: Cornell University Library
    Subjects: Bees  Puerto Rico  
  15. By: Plank, H. K. (Harold Kaufman),
    Publication info: Federal Experiment Station in Puerto Rico, 1948
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Bamboo  Dinoderus minutus  Diseases and pests  Puerto Rico
  16. By: Wetmore, Alexander,
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1916
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Birds  Puerto Rico
  17. By: Porto Rico Agricultural Experiment Station.
    Publication info: Washington, G.P.O, 1903-
    Holding Institution: Multiple institutions
    Subjects: Agriculture  Periodicals  Puerto Rico
  18. By: Chapin, Edward Albert,
    Publication info: New York City, American Museum of Natural History, [1930]
    Holding Institution: American Museum of Natural History Library
    Subjects: Canthonella parva  Classification  Insects  Puerto Rico  Scarabaeidae
  19. By: United States. Forest Service.
    Edition: Revised, July 1940.
    Publication info: Washington, D.C, Govt, 1940
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Description and travel  Forest reserves  Puerto Rico  
  20. By: United States. Forest Service. Southern Region.
    Publication info: Washington, U.S. Govt. print. off, 1936
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Caribbean National Forest (P.R.)  Forest reserves  Puerto Rico  
  21. By: Maguire, Bassett, - Steyermark, Julian A. (Julian Alfred), - Maguire, Celia K.
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    Subjects: (Julian Alfred),  1904-1991  1909-1988  Accession records  Brazil  Catalogs and collections  Colombia  Costa Rica  Field notes  Guatemala  Honduras  Maguire, Bassett,  Maguire, Celia K  Mexico  Nicaragua  Panama  Peru  Plants  Puerto Rico  Steyermark, Julian A  Trinidad  Trinidad and Tobago  Venezuela  
  22. By: Bogart, James P., - Royal Ontario Museum.
    Publication info: Toronto, Royal Ontario Museum, 1981
    Holding Institution: University of Toronto - Royal Ontario Museum Library & Archives
    Subjects: Amphibians  Chromosomes  Cuba  Eleutherodactylus  Genetics  Leptodactylidae  Puerto Rico  
  23. By: Winters, Harold F.
    Publication info: Federal Experiment Station in Puerto Rico, 1950
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Cinchona  Puerto Rico
  24. By: Henricksen, H. C.
    Publication info: Porto Rico Agricultural Experiment Station, 1930
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Citrus fruits  Fruit-culture  Puerto Rico
    BHL Collections: Expanding Access to Biodiversity Literature
  25. By: Kinman, C. F. (Charles Franklin),
    Publication info: Porto Rico Agricultural Experiment Station, 1915
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Citrus fruits  Fertilizers  Puerto Rico
  26. By: McClelland, T. B. (Thomas Brown),
    Publication info: Mayagüez, P.R, Porto Rico Agricultural Experiment Station, 1921
    Holding Institution: University of Florida, George A. Smathers Libraries
    Subjects: Coffee  Diseases and pests  Leaf spots  Puerto Rico  
    BHL Collections: Expanding Access to Biodiversity Literature
  27. By: McClelland, T. B. (Thomas Brown),
    Publication info: Porto Rico Agricultural Experiment Station, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Coffee  Diseases and pests  Leaf spots  Puerto Rico
  28. By: McClelland, T. B. (Thomas Brown),
    Publication info: Porto Rico Agricultural Experiment Station, 1924
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Coffee  Puerto Rico  Varieties
  29. By: Little, Elbert Luther, - Wadsworth, Frank H.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, Forest Service, 1964
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Puerto Rico  Trees  Virgin Islands of the United States
  30. By: Little, Elbert Luther, - Wadsworth, Frank H.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, Forest Service, 1964
    Holding Institution: MBLWHOI Library
    Subjects: Puerto Rico  Trees  Virgin Islands of the United States
  31. By: Kepler, Angela Kay,
    Publication info: Cambridge, Mass, Nuttall Ornithological Club, 1977
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: Birds  Puerto Rican tody  Puerto Rico  Todidae  
  32. By: Kinman, C. F. (Charles Franklin),
    Publication info: Porto Rico Agricultural Experiment Station, 1916
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Cover crops  Puerto Rico
  33. By: Hill, Robert Thomas,
    Publication info: New York, Century, 1898
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    Subjects: Cuba  Description and travel  Puerto Rico  West Indies  
  34. By: Henricksen, Henrick Christian,
    Publication info: Washington, Imprenta del Gobierno, 1907
    Holding Institution: Library of Congress
    Subjects: Legumes  Puerto Rico  
    BHL Collections: Latino Natural History | Publicaciones en Español
  35. By: May, David William,
    Publication info: Mayagüez, P.R, Porto Rico Agricultural Experiment Station, 1922
    Holding Institution: University of Florida, George A. Smathers Libraries
    Subjects: Dairying  Puerto Rico
    BHL Collections: Expanding Access to Biodiversity Literature
  36. By: May, David William,
    Publication info: Porto Rico Agricultural Experiment Station, 1922
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Dairying  Puerto Rico
  37. By: Stejneger, Leonhard,
    Publication info: 1900
    Holding Institution: Smithsonian Institution Archives
    Subjects: Field notes  Herpetology  Ornithology  Puerto Rico  San Juan
    BHL Collections: Smithsonian Field Books collection
  38. By: Gómez de la Maza, Manuel,
    Publication info: Habana, Impr. "La Antilla" de G. Cacho-Negrete, 1889
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: Botany  Cuba  Dictionaries  Plant names, Popular  Plants  Puerto Rico  Spanish  
    BHL Collections: Latino Natural History | Publicaciones en Español
  39. By: MacPhee, R. D. E. - Iturralde-Vinent, Manuel - Gaffney, Eugene S.
    Publication info: New York, NY American Museum of Natural History c2003
    Holding Institution: American Museum of Natural History Library
    Subjects: Caribbean Area  Cuba  Domo de Zaza (Sancti Spíritus, Cuba)  Geology, Stratigraphic  Geology, Structural  Mammals, Fossil  Miocene  Paleobiogeography  Paleogeography  Paleontology  Plate tectonics  Puerto Rico  Sancti Spíritus (Province)  Tertiary  Vertebrates, Fossil
  40. By: Cook, O. F. (Orator Fuller), - Collins, G. N. (Guy N.),
    Publication info: Washington, Govt. Print Off, 1903
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: Botany  Botany, Economic  Puerto Rico  
  41. By: McClelland, T. B. (Thomas Brown),
    Publication info: Mayagüez, P.R, Porto Rico Agricultural Experiment Station, 1928
    Holding Institution: University of Florida, George A. Smathers Libraries
    Subjects: Coffee  Pruning  Puerto Rico  
    BHL Collections: Expanding Access to Biodiversity Literature
  42. By: McClelland, T. B. (Thomas Brown),
    Publication info: Porto Rico Agricultural Experiment Station, 1928
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Coffee  Pruning  Puerto Rico
  43. By: Robinson, Andrew F. - United States. Forest Service.
    Edition: Rev. ed. --
    Publication info: [Washington, D.C.?, U.S. Forest Service], 1982-
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Puerto Rico  Rare animals  Rare plants  Southern States  Virgin Islands of the United States  
  44. By: United States. Forest Service. - Robinson, Andrew F.
    Edition: Rev.
    Publication info: [Washington], U.S. Dept. of Agriculture, Forest Service, 1980
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Puerto Rico  Rare animals  Rare plants  Southern States  United States Virgin Islands  
  45. By: Stahl, A. (Agustín),
    Publication info: [San Juan?], Tip. de El Asimilista, 1883-1888
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    Subjects: Plants  Puerto Rico
    BHL Collections: Latino Natural History | Publicaciones en Español
  46. By: Kinman, C. F. (Charles Franklin), - McClelland, T. B. (Thomas Brown),
    Publication info: Porto Rico Agricultural Experiment Station, 1916
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Plant genetics  Puerto Rico  Seeds  Vegetables
  47. By: McClelland, T. B. (Thomas Brown),
    Publication info: Porto Rico Agricultural Experiment Station, 1926
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Coffee  Fertilizers  Puerto Rico
  48. By: Fosberg, F. Raymond (Francis Raymond),
    Publication info: 1963
    Holding Institution: Smithsonian Institution Archives
    Subjects: Borneo  Botany  Brunei Darussalam  Connecticut  Field notes  Massachusetts  New York  Pennsylvania  Puerto Rico  Singapore  United States  Virginia
    BHL Collections: Smithsonian Field Books collection
  49. By: Crosse, Hippolyte,
    Publication info: Paris, H. Crosse, 1892
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: Mollusks  Puerto Rico  
  50. By: Howard, Richard A. (Richard Alden),
    Holding Institution: Harvard University Botany Libraries
    Subjects: Alabama  Dominican Republic  Florida  Maine  Plants  Puerto Rico  Roque Island
  51. By: Howard, Richard A. (Richard Alden),
    Publication info: [1961-1966]
    Holding Institution: Harvard University Botany Libraries
    Subjects: Hawaii  Massachusetts  Plants  Puerto Rico  West Indies
  52. By: Howard, Richard A. (Richard Alden),
    Publication info: [1966-1968]
    Holding Institution: Harvard University Botany Libraries
    Subjects: Florida  Maryland  Massachusetts  New Hampshire  Ohio  Plants  Puerto Rico  Saint Kitts  Saint Kitts and Nevis
  53. By: Schubert, Bernice,
    Holding Institution: Harvard University Botany Libraries
    Subjects: Plants  Puerto Rico
    BHL Collections: BHL Field Notes Project
  54. By: Wetmore, Alexander,
    Publication info: 1911-1918
    Holding Institution: Smithsonian Institution Archives
    Subjects: Field notes  Kansas  Lawrence  Ornithology  Puerto Rico  United States
    BHL Collections: Smithsonian Field Books collection
  55. By: Curran, Charles Howard,
    Publication info: New York City, American Museum of Natural History, [1931]
    Holding Institution: American Museum of Natural History Library
    Subjects: Classification  Diptera  Insects  Puerto Rico  Virgin Islands
  56. By: United States. Forest Service. - Pinchot, Gifford, - Smith, George Otis, - Marshall, R. B. (Robert Bradford),
    Publication info: [Washington, D.C.], U.S. Department of Agriculture, Forest Service, [1908]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Forest reserves  Luquillo Experimental Forest  Luquillo Experimental Forest (P.R.)  Maps  National parks and reserves  Puerto Rico
  57. By: Murphy, Louis Sutliffe. - Puerto Rico. Board of Commissioners of Agriculture.
    Publication info: Washington, Govt. print. off, 1916
    Holding Institution: Library of Congress
    Subjects: Forests and forestry  Puerto Rico  
  58. By: Murphy, Louis S. (Louis Sutliffe), - Puerto Rico. Board of Commissioners of Agriculture.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1916
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Forests and forestry  Puerto Rico
  59. By: Vaughan, Thomas Wayland,
    Publication info: Washington, Govt. Print. Off, 1919
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: Central America  Coral reefs and islands  Corals, Fossil  Cuba  Paleontology  Puerto Rico
  60. By: Vaughan, Thomas Wayland,
    Publication info: [between 1903 and 1910]
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: Antilles, Lesser  Corals, Fossil  Paleontology  Puerto Rico  
  61. By: Schmitt, Waldo L. (Waldo Lasalle),
    Publication info: New York City, The American Museum of Natural History, [1933]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.53,84(729.5)  Classification  Crustacea  Decapoda (Crustacea)  Gnathophylloides mineri  Paguristes tortugae  Periclimenes portoricensis  Puerto Rico  Synalpheus osburni
  62. By: Fawcett, G. L. (George Lorenzo),
    Publication info: Porto Rico Agricultural Experiment Station, 1915
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Coffee  Diseases and pests  Fungal diseases of plants  Puerto Rico
  63. By: Miller, Gerrit S. (Gerrit Smith),
    Publication info: 1932-1937
    Holding Institution: Smithsonian Institution Archives
    Subjects: Botany  Field notes  Florida  Panama  Perlas, Archipiélago de las  Puerto Rico  Sketches  United States
    BHL Collections: Smithsonian Field Books collection
  64. By: Berkey, Charles Peter,
    Publication info: New York, New York Academy of Sciences, 1915
    Holding Institution: Wellesley College Library
    Subjects: Geology  Puerto Rico  
  65. By: Wm. C. Geraty Co. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Young's Island, S.C, Wm. C. Geraty Co, [1921]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Cabbage  Catalogs  Nursery stock  Puerto Rico  South Carolina  Sweet potatoes  Tomatoes  Vegetables  
    BHL Collections: Seed & Nursery Catalogs
  66. By: Stejneger, Leonhard,
    Publication info: Washington, U.S. Government Printing Office, 1904
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: Amphibians  Puerto Rico  Reptiles  
  67. By: Francis, John K.
    Publication info: Institute of Tropical Forestry, U.S. Dept. of Agriculture, Forest Service, Southern Forest Experiment Station, 1991]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Euphorbiaceae  Puerto Rico  
  68. By: Anthony, H. E. (Harold Elmer),
    Publication info: [New York], 1918
    Holding Institution: American Museum of Natural History Library
    Subjects: Mammals  Mammals, Fossil  Paleontology  Puerto Rico  
  69. By: Plank, H. K. (Harold Kaufman), - Winters, Harold F.
    Publication info: Federal Experiment Station in Puerto Rico, 1949
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Cinchona  Diseases and pests  Puerto Rico
  70. By: Plank, H. K. (Harold Kaufman),
    Publication info: Federal Experiment Station in Puerto Rico, 1950
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Insecticidal plants  Puerto Rico
  71. By: Jones, Thomas Henry,
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1915
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Diseases and pests  Insect pests  Puerto Rico  Vegetables
  72. By: Fife, L. Courtney.
    Publication info: Puerto Rico Agricultural Experiment Station, 1939
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Cotton  Diseases and pests  Puerto Rico
  73. By: Tower, W. V. (Winthrop Vose),
    Publication info: Porto Rico Agricultural Experiment Station, 1911
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Citrus  Control  Diseases and pests  Puerto Rico
  74. By: Association of sugar producers of Puerto Rico. Experiment station, Rio Piedras.
    Edition: [English ed.]
    Publication info: [San Juan], The Times publishing co, 1912
    Holding Institution: Cornell University Library
    Subjects: Irrigation  Puerto Rico  Sugar growing  
  75. By: Puerto Rico. Dept. of Natural Resources. - United States. Office of Ocean and Coastal Resource Management. Sanctuary Programs Division.
    Publication info: Washington, D.C, U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Office of Ocean and Coastal Resource Management, Sanctuary Programs Division, [1983]
    Holding Institution: Penn State University
    Subjects: Estuarine area conservation  Estuarine ecology  Estuarine reserves  Jobos Bay  Jobos Bay National Estuarine Research Reserve (P.R  Puerto Rico  
  76. By: Blackwelder, Richard Eliot
    Publication info: 1935
    Holding Institution: Smithsonian Institution Archives
    Subjects: Beetles  Ciales  Diary  Entomology  Field notes  Grande-Terre  Guadeloupe  La Brea  Maps  Puerto Rico  Saint Thomas  Sans Souci  Trinidad  Trinidad and Tobago
    BHL Collections: Smithsonian Field Books collection
  77. By: Blackwelder, Richard Eliot
    Publication info: 1936-1937
    Holding Institution: Smithsonian Institution Archives
    Subjects: Beetles  Diary  El Yunque  Entomology  Field notes  Jamaica  Maps  Puerto Rico  Saint Croix  Virgin Islands of the United States
    BHL Collections: Smithsonian Field Books collection
  78. By: Puerto Rico. Board of Commissioners of Agriculture.
    Publication info: San Juan, [Board of Commissioners of Agriculture, 1917]
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    Subjects: Agriculture  Periodicals  Puerto Rico  
  79. By: Puerto Rico. Department of Agriculture and Labor. - Puerto Rico. Department of Agriculture. - Puerto Rico. Department of Agriculture and Commerce.
    Publication info: San Juan, P.R, Dept. of Agriculture and Labor, 1917-1933
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Agriculture  Botany  Experimentation  Periodicals  Puerto Rico
  80. By: Pregill, Gregory K.
    Publication info: Lawrence, The University of Kansas, 1981
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: Geology, Stratigraphic  Paleontology  Pleistocene  Puerto Rico  Vertebrates, Fossil
  81. By: Perkins, Janet Russell,
    Publication info: Washington, Govt. print. off, 1907
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    Subjects: Leguminosae  Puerto Rico  
    BHL Collections: Women in Natural History
  82. By: Plank, H. K. (Harold Kaufman),
    Publication info: Federal Experiment Station in Puerto Rico, 1948
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Coconut  Diseases and pests  Puerto Rico  Rhinoceros beetle
  83. By: Gifford, John C. (John Clayton),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, Bureau of Forestry, 1905
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Forest reserves  Luquillo Forest Reserve (P.R.)  Puerto Rico
  84. By: Kinman, C. F. (Charles Franklin),
    Publication info: Washington, Govt. print. off, 1918
    Holding Institution: Library of Congress
    Subjects: Mango  Puerto Rico
    BHL Collections: Expanding Access to Biodiversity Literature
  85. By: Kinman, C. F. (Charles Franklin), - United States. Department of Agriculture. States Relations Service. - United States. Office of Experiment Stations. - Porto Rico Agricultural Experiment Station.
    Publication info: Porto Rico Agricultural Experiment Station, 1918
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Economic aspects  Mango  Mango industry  Puerto Rico  Varieties
  86. By: Ballantine, David L. - Norris, James N. - Ruiz Torres, Héctor J.
    Publication info: Washington, D.C, Smithsonian Institution Scholarly Press, 2023
    Holding Institution: Smithsonian Institution Scholarly Press (SISP)
    Subjects: Ecology  Identification  Marine algae  Puerto Rico
  87. By: Ballantine, David L. - Norris, James N. - Ruiz, Hector,
    Publication info: Washington Smithsonian Institution Scholarly Press 2021
    Holding Institution: Smithsonian Institution Scholarly Press (SISP)
    Subjects: algal flora  Ochrophyta  Puerto Rico
  88. By: Chase, Agnes,
    Publication info: 1924-1941
    Holding Institution: Smithsonian Institution Archives
    Subjects: Botanists  Botany  Brazil  Correspondence  Field notes  Grasses  Puerto Rico  Research notes
    BHL Collections: Smithsonian Field Books collection | Women in Natural History
  89. By: Tower, Winthrop Vose
    Publication info: Washington, Govt. Print. Off, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Mosquitoes  Mosquitoes as carriers of disease  Puerto Rico  
  90. By: Geary, T. F.
    Publication info: Institute of Tropical Forestry, 1972
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Control  Pine  Pinus caribaea  Puerto Rico  Trees  Weed control  Weeds  
  91. By: Curran, Charles Howard, - Williston, Samuel W. (Samuel Wendell), - Barbiellini, A. A. - Danforth, Stuart T. (Stuart Taylor),
    Publication info: New York City, The American Museum of Natural History, [1935]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.57,72A  Brazil  Classification  Insects  Puerto Rico  Robber flies
  92. By: Dozier, Herbert L. (Herbert Lawrence),
    Publication info: New York City, The American Museum of Natural History, [1931]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.57,53(729)  Classification  Haiti  Homoptera  Insects  Puerto Rico  West Indies
  93. By: Watson, Frank E. - Lutz, Frank Eugene, - Mutchler, Andrew Johnson
    Publication info: New York City, The American Museum of Natural History, [1938]
    Holding Institution: American Museum of Natural History Library
    Subjects: Butterflies  Classification  Eurema sanjuanensis  Insects  Puerto Rico  San Juan Region
  94. By: Williams, Ernest E. (Ernest Edward) - Koopman, Karl F. - Thorp, James.
    Publication info: New York American Museum of Natural History [1951]
    Holding Institution: American Museum of Natural History Library
    Subjects: 56.9,32(729.5)  Corozal Region  Mammals, Fossil  Paleontology  Pleistocene  Proechimys corozalus  Puerto Rico  Rodents, Fossil
  95. By: Watson, Frank E.
    Publication info: New York City, The American Museum of Natural History, [1937]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.57,89H(729)  Butterflies  Classification  Hesperiidae  Insects  Puerto Rico  Virgin Islands  West Indies
  96. By: Ponce de Leon, Patricio.
    Publication info: Chicago, Ill, Field Museum of Natural History, 1969
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Botany  Brazil  Morganella albina  Puerto Rico
  97. By: Treadwell, Aaron L. (Aaron Louis),
    Publication info: New York City, The American Museum of Natural History, [1939]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.51,7(7)  Annelida  Classification  New England  Polychaeta  Puerto Rico  Texas
  98. By: Mutchler, Andrew Johnson
    Publication info: New York City, The American Museum of Natural History, [1934]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.57,62C(729.5)  Classification  Ground beetles  Insects  Puerto Rico
  99. By: Barber, Harry Gardner,
    Publication info: New York City, The American Museum of Natural History, [1935]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.57,54E(729.5)  Classification  Edessa paravinula  Insects  Puerto Rico  Stinkbugs
  100. By: Hall, E. Raymond (Eugene Raymond), - Tamsitt, J. R. - Royal Ontario Museum.
    Publication info: Toronto, Royal Ontario Museum, c1968
    Holding Institution: Royal Ontario Museum
    Subjects: Mammals  Puerto Rico  Stenoderma rufum  
  101. By: Hill, Robert Thomas,
    Publication info: Washington, D.C, Dept. of Agriculture, Forestry Division, 1899
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Forests and forestry  Puerto Rico
  102. By: MacPhee, R. D. E. - Wyss, André R.
    Publication info: New York, N.Y, American Museum of Natural History, c1990
    Holding Institution: American Museum of Natural History Library
    Subjects: Geographical distribution  Miocene  Oligocene  Paleontology  Puerto Rico  Vertebrates, Fossil  
  103. By: MacPhee, R. D. E. - Iturralde-Vinent, Manuel
    Publication info: New York, N.Y, American Museum of Natural History, c1995
    Holding Institution: American Museum of Natural History Library
    Subjects: Cuba  Mammals, Fossil  Paleontology  Puerto Rico  Tertiary
  104. By: United States. Bureau of Fisheries.
    Publication info: 1898-1899
    Holding Institution: Smithsonian Institution Archives
    Subjects: Field notes  Fish Hawk (Steamer)  Ichthyology  Logbooks  Marine biology  Marine invertebrates  Mayag¸ez, BahÌa de  Narragansett Bay  Puerto Rico  Rhode Island  United States
    BHL Collections: Smithsonian Field Books collection
  105. By: Van Volkenberg, H. L. (Horatio Luther),
    Publication info: Mayagüez, P.R, Puerto Rico Agricultural Experiment Station, 1934
    Holding Institution: University of Florida, George A. Smathers Libraries
    Subjects: Cattle  Parasites  Puerto Rico  
    BHL Collections: Expanding Access to Biodiversity Literature
  106. By: Van Volkenberg, H. L. (Horatio Luther),
    Publication info: Puerto Rico Agricultural Experiment Station, 1934
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Cattle  Parasites  Puerto Rico
  107. By: Van Volkenberg, H. L. (Horatio Luther),
    Publication info: Puerto Rico Agricultural Experiment Station, 1935
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Horses  Parasites  Puerto Rico
    BHL Collections: Expanding Access to Biodiversity Literature
  108. By: Van Volkenberg, H. L. (Horatio Luther),
    Publication info: Mayagüez, P.R, Puerto Rico Agricultural Experiment Station, 1936
    Holding Institution: University of Florida, George A. Smathers Libraries
    Subjects: Parasites  Puerto Rico  Swine  
    BHL Collections: Expanding Access to Biodiversity Literature
  109. By: Van Volkenberg, H. L. (Horatio Luther),
    Publication info: Puerto Rico Agricultural Experiment Station, 1936
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Parasites  Puerto Rico  Swine
  110. By: Blackwelder, Richard Eliot
    Publication info: 1935-1937
    Holding Institution: Smithsonian Institution Archives
    Subjects: Barbados  Black-and-white photographs  Blackwelder, Richard E  Carriacou  Dominican Republic  Entomology  Field notes  Grenada  Guadeloupe  Haiti  Jamaica  Martinique  Puerto Rico  Saint Lucia  Saint Thomas  Saint Vincent  Saint Vincent and the Grenadines  Trinidad and Tobago
    BHL Collections: Smithsonian Field Books collection
  111. By: Henricksen, H. C. (Henrick Christian), - Iorns, M. J. (Martin J.)
    Publication info: Porto Rico Agricultural Experiment Station, 1909
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Fruit-culture  Pineapple  Puerto Rico
    BHL Collections: Expanding Access to Biodiversity Literature
  112. By: Henricksen, H. C. (Henrick Christian), - Iorns, M. J. (Martin J.)
    Publication info: Mayagüez, P.R, Porto Rico Agricultural Experiment Station, 1909
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Fruit-culture  Pineapple  Puerto Rico  
  113. By: Schubert, Bernice,
    Holding Institution: Harvard University Botany Libraries
    Subjects: Costa Rica  Cuba  Panama  Plants  Puerto Rico
    BHL Collections: BHL Field Notes Project
  114. By: Garber, A. P. (Abraham Paschal), - Gray, Asa, - Eaton, Daniel Cady,
    Publication info: 1880?
    Holding Institution: Harvard University Botany Libraries
    Subjects: Correspondence  Plants  Puerto Rico  
    BHL Collections: BHL Field Notes Project
  115. By: Treadwell, Aaron L. (Aaron Louis),
    Publication info: New York City, The American Museum of Natural History, [1941]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.51,7(7)  Ancistrosyllis tentaculata  Annelida  Brazil  Classification  Laonome sanjuanensis  Nereis (Neanthes) varia  Northeastern States  Parasabella minuta  Polychaeta  Puerto Rico  São Sebastião Island
  116. By: Phillips, Everett Franklin,
    Publication info: Porto Rico Agricultural Experiment Station, 1914
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Bee culture  Puerto Rico
  117. By: Britton, Nathaniel Lord,
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    Subjects: 1859-1934  Accession records  Britton, Nathaniel Lord,  Catalogs and collections  Field notes  Plants  Puerto Rico  
  118. By: Wetmore, Alexander,
    Publication info: 1911-1912
    Holding Institution: Smithsonian Institution Archives
    Subjects: Account book  Field notes  Ornithology  Puerto Rico  Receipts (financial records)  United States Dept. of Agriculture  
    BHL Collections: Smithsonian Field Books collection
  119. By: Wetmore, Alexander,
    Publication info: 1912
    Holding Institution: Smithsonian Institution Archives
    Subjects: Aguadilla  Añasco  Bats  Coffee leafminer  Culebra, Isla de  Entomology  Field notes  Guanica  Lares  Mammalogy  Ornithology  Ponce  Puerto Rico  Quebradillas  United States Dept. of Agriculture  Vieques, Isla de  
    BHL Collections: Smithsonian Field Books collection
  120. By: Wetmore, Alexander,
    Publication info: 1912
    Holding Institution: Smithsonian Institution Archives
    Subjects: Bats  Culebrita, Isla  El Yunque  Fajardo  Field notes  Mammalogy  Ornithology  Ponce  Puerto Rico  Río Piedras  United States Dept. of Agriculture  
    BHL Collections: Smithsonian Field Books collection
  121. By: Wetmore, Alexander,
    Publication info: 1911-1912
    Holding Institution: Smithsonian Institution Archives
    Subjects: Aibonito  Bats  Caguas,  Fajardo  Field notes  Ornithology  Picúa, Punta  Puerto Rico  Rio Grande  Río Piedras  Trujillo Alto  United States Dept. of Agriculture  
    BHL Collections: Smithsonian Field Books collection
  122. By: Wetmore, Alexander,
    Publication info: 1912
    Holding Institution: Smithsonian Institution Archives
    Subjects: Ajuntas  Bats  Cabo Rojo  Coffee plantations  Field notes  Grande de Arecibo  Juana Diaz  Mammalogy  Manatí  Ornithology  Ponce  Puerto Rico  Tobacco  United States Dept. of Agriculture  Utuado  
    BHL Collections: Smithsonian Field Books collection
  123. By: Wetmore, Alexander,
    Publication info: 1911-1912
    Holding Institution: Smithsonian Institution Archives
    Subjects: Correspondence  Field notes  Herpetology  Mammalogy  Ornithology  Phyllophaga  Plague  Puerto Rico  Reptiles  United States Dept. of Agriculture  
    BHL Collections: Smithsonian Field Books collection
  124. By: Henricksen, H. C.
    Publication info: Washington, D.C, G.P.O, 1904
    Holding Institution: Library of Congress
    Subjects: Fruit-culture  Oranges  Puerto Rico  
    BHL Collections: Publicaciones en Español
  125. By: Henricksen, H. C. (Henrick Christian),
    Publication info: Porto Rico Agricultural Experiment Station, 1904
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Marketing  Oranges  Puerto Rico
  126. By: Hoff, C. Clayton (Clarence Clayton),
    Publication info: New York City, The American Museum of Natural History, [1945]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.54,7O  Arachnida  Classification  Olpiinae  Pseudoscorpions  Puerto Rico  Trinidad  Trinidad and Tobago  West Indies
  127. By: Woodbury, Roy O. - United States. Soil Conservation Service. - Puerto Rico. Dept. of Natural Resources.
    Publication info: [Washington], U.S. Dept. of Agriculture, Soil Conservation Service in cooperation with the Department of Natural Resources, Commonwealth of Puerto Rico, 1975
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Puerto Rico  Rare plants  
  128. By: Little, Elbert Luther, - Woodbury, Roy O. - United States. Forest Service. - United States. Forest Service. - United States. Forest Service. Timber Management Research.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, Forest Service, 1980
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: British Virgin Islands  Puerto Rico  Rare plants  Trees  Virgin Islands of the United States
  129. By: Van Zwaluwenburg, R. H. (Reyer Herman), - Vidal, Rafael,
    Publication info: Washington, Govt. Print. Off, 1918
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Bees  Puerto Rico  
  130. By: Gile, P. L. (Philip Lindsey), - Ageton, Charles Norman,
    Publication info: Porto Rico Agricultural Experiment Station, 1914
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Puerto Rico  Soils  Terra rossa
  131. By: Flemming, Clare. - MacPhee, R. D. E.
    Publication info: New York, NY, American Museum of Natural History, c1999
    Holding Institution: American Museum of Natural History Library
    Subjects: Extinct mammals  Holocene  Isolobodon portoricensis  Mammals, Fossil  Paleontology  Puerto Rico  Rodents, Fossil  
  132. By: Delgado, Patricia - Stedman, Susan-Marie. - United States. National Marine Fisheries Service. Office of Habitat Conservation.
    Publication info: Silver Spring, MD, Administración Nacional de los Océanos y la Atmósfera (NOAA), Oficina de Pesquerías de NOAA, División de Conservación de Habitáculo, 2004
    Holding Institution: Penn State University
    Subjects: Fishes  Habitat  Puerto Rico  Virgin Islands of the United States  Wetland conservation  Wetland ecology  
    BHL Collections: Publicaciones en Español
  133. By: Ledru, André Pierre, - Zimmermann, Eberhard August Wilhelm von, - Sonnini, C. S. (Charles Sigisbert), - Baudin, Charles,
    Publication info: Leipzig, H. Büschler, 1811-1812
    Holding Institution: Multiple institutions
    Subjects: Canary Islands  Description and travel  Imprint 1811  Imprint 1812  Natural history  Plants  Puerto Rico  Saint Croix (United States Virgin Islands)  Saint Thomas (United States Virgin Islands : Islan  Trinidad  West Indies  
  134. By: Gile, P. L. (Philip Lindsey),
    Publication info: Porto Rico Agricultural Experiment Station, 1911
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Calcareous soils  Chlorosis  Pineapple  Puerto Rico
  135. By: Rose, J. N. (Joseph Nelson),
    Publication info: 1912, 1919-1929
    Holding Institution: Smithsonian Institution Archives
    Subjects: Alabama  Arizona  Belgium  Botany  California  Chile  Cuba  Field notes  Germany  Guatemala  Mexico  Panama  Puerto Rico  South Carolina  Texas  United States  Wyoming
    BHL Collections: Smithsonian Field Books collection
  136. By: Francis, John K.
    Publication info: Rio Piedras, PR, International Institute of Tropical Forestry, U.S. Dept. of Agriculture, Forest Service, 1992
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Palms  Puerto Rico  
  137. By: Zerban, F. W. (Frederick William),
    Publication info: [San Juan, Porto Rico], The Times Publishing Co, 1913
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    Subjects: Marshes  Puerto Rico  Soils  
  138. By: New York Academy of Sciences.
    Publication info: New York, N.Y The Academy 1919-
    Holding Institution: Multiple institutions
    Subjects: Expedities  Geologie  Natural history  Natuurlijke historie  Periodicals  Puerto Rico  Scientific Expeditions  United States Virgin Islands  
  139. By: Schmitt, Waldo L. (Waldo Lasalle),
    Publication info: 1956
    Holding Institution: Smithsonian Institution Archives
    Subjects: Antigua  Barbados  Caribbean Sea  Field notes  Grenadine Islands  Martinique  Puerto Rico  Slides (photographs)  Smithsonian-Bredin Caribbean Expeditions (1956-195  Trinidad  Zoology
    BHL Collections: Smithsonian Field Books collection
  140. By: Schmitt, Waldo L. (Waldo Lasalle),
    Publication info: 1937
    Holding Institution: Smithsonian Institution Archives
    Subjects: Correspondence  Crustaceans  Cuba  Field notes  Hartford-Smithsonian West Indies Expedition (1937)  Mineralogy  Puerto Rico  Saint Thomas  San Juan  Virgin Islands  West Indies  Zoology  
    BHL Collections: Smithsonian Field Books collection
  141. By: Schmitt, Waldo L. (Waldo Lasalle),
    Publication info: 1937
    Holding Institution: Smithsonian Institution Archives
    Subjects: Barbados  Diary  Field notes  Hartford-Smithsonian West Indies Expedition (1937)  Puerto Rico  Saint Pierre and Miquelon  Saint Thomas  Virgin Islands  West Indies  Zoology  
    BHL Collections: Smithsonian Field Books collection
  142. By: Dorsey, Clarence W. (Clarence Wilbur), - Mesmer, Louis. - Caine, Thomas A.
    Publication info: Porto Rico Agricultural Experiment Station, 1903
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Puerto Rico  Soils
  143. By: Theis, Thomas.
    Publication info: Federal Experiment Station of the United States Dept. of Agriculture, 1953
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Diseases and pests  Forage plants  Puerto Rico
    BHL Collections: Expanding Access to Biodiversity Literature
  144. By: McClelland, T. B. (Thomas Brown),
    Publication info: Porto Rico Agricultural Experiment Station, 1917
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Coffee  Puerto Rico  Soils
  145. By: Young, Esther.
    Publication info: 1915
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: 1915  Botany  Cercospora  Fungi  Phyllosticta  Puerto Rico  Theses  UIUC
  146. By: Plank, H. K. (Harold Kaufman),
    Publication info: Federal Experiment Station in Puerto Rico, 1950
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Bamboo  Control  Dinoderus minutus  Diseases and pests  Puerto Rico
  147. By: Loew, Oscar,
    Publication info: Porto Rico Agricultural Experiment Station, 1913
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Acid soils  Puerto Rico
  148. By: Loustalot, A. J. (Arnaud Joseph), - Muzik, Thomas James, - Cruzado, H. J.
    Publication info: Federal Experiment Station of the United States Dept. of Agriculture, 1954
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Control  Nutgrass  Puerto Rico
  149. By: Tower, Winthrop Vose - Tower, Winthrop Vose - Porto Rico Agricultural Experiment Station.
    Publication info: Mayaguez, Mayaguez Print. Co, 1912
    Holding Institution: Multiple institutions
    Subjects: Mosquitoes  Puerto Rico  San Juan  
  150. By: McAlister, L. C. (Lawrence Clayton),
    Publication info: Puerto Rico Experiment Station of the United States Dept. of Agriculture, 1941
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Citrus  Diseases and pests  Fruit-flies  Puerto Rico
  151. By: May, David William,
    Publication info: Porto Rico Agricultural Experiment Station, 1910
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Puerto Rico  Sugarcane
  152. By: Davis, R. L. (Robert Lesley),
    Publication info: Mayagüez, P.R, Puerto Rico Agricultural Experiment Station, 1934
    Holding Institution: University of Florida, George A. Smathers Libraries
    Subjects: Puerto Rico  Sugarcane  Varieties  
    BHL Collections: Expanding Access to Biodiversity Literature
  153. By: Davis, R. L. (Robert Lesley),
    Publication info: Puerto Rico Agricultural Experiment Station, 1934
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Puerto Rico  Sugarcane  Varieties
  154. By: Cook, O. F. (Orator Fuller),
    Publication info: New York, 1901
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    Subjects: Palmae  Puerto Rico  
  155. By: Cruz, Jorge de la. - Tamsitt, J. R. - Valdivieso, Dario, - Royal Ontario Museum.
    Publication info: Toronto, Royal Ontario Museum, c1974
    Holding Institution: Royal Ontario Museum
    Subjects: Bats  Listrophoridae  Mites  Parasites  Puerto Rico  
  156. By: Van Leenhoff, J. W. (Johannes W.)
    Publication info: Porto Rico Agricultural Experiment Station, 1905
    Holding Institution: Multiple institutions
    Subjects: Field experiments  Puerto Rico  Tobacco
    BHL Collections: Expanding Access to Biodiversity Literature
  157. By: Hennefrund, Helen E. - United States. Office of Experiment Stations.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, Bureau of Agricultural Economics, 1940
    Holding Institution: University of Florida, George A. Smathers Libraries
    Subjects: Bibliography  Cuba  Puerto Rico  Tomato industry  
    BHL Collections: Expanding Access to Biodiversity Literature
  158. By: Hill, R. G. (Robert George), - Hawkins, Lon A. (Lon Adrian),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1924
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Citrus fruits  Puerto Rico  Transportation
  159. By: Fernández y Jiménez, José María.
    Publication info: Habana, Liga Agraria, 1905
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    Subjects: Cuba  Puerto Rico  Trees  
    BHL Collections: Latino Natural History | Publicaciones en Español
  160. By: Fernández y Jiménez, José María.
    Publication info: Habana, Impr. y taller de encuadernacion "La Fortuna", 1867
    Holding Institution: National Library of Medicine
    Subjects: Cuba  Puerto Rico  Trees  
    BHL Collections: Publicaciones en Español
  161. By: Briscoe, C. B.
    Publication info: Rio Piedras, Puerto Rico, Institute of Tropical Forestry, [1962]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Growth  Puerto Rico  Trees  
  162. By: United States. Forest Service. - United States. Forest Service. Southern Region. - Puerto Rico. Department of Natural Resources.
    Publication info: Atlanta, Ga, U.S. Dept. of Agriculture, Forest Service, Southern Region, 1995
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Caribbean Area  Handbooks, manuals, etc  Puerto Rico  Tree planting  Trees
  163. By: Geary, T. F. - Briscoe, C. B.
    Publication info: Rio Piedras, P.R, Institute of Tropical Forestry, 1972
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Forests and forestry  Puerto Rico  Trees
  164. By: Little, Elbert Luther, - Institute of Tropical Forestry (Río Piedras, San Juan, P.R.)
    Publication info: Rio Piedras, P.R, Institute of Tropical Forestry, Forest Service, U.S. Dept. of Agriculture, 1976
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: Puerto Rico  Trees
  165. By: McClelland, T. B. (Thomas Brown),
    Publication info: Porto Rico Agricultural Experiment Station, 1919
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Puerto Rico  Vanilla  Vanilla industry
  166. By: McClelland, T. B. (Thomas Brown),
    Publication info: Mayagüez, P.R, Porto Rico Agricultural Experiment Station, 1919
    Holding Institution: University of Florida, George A. Smathers Libraries
    Subjects: Puerto Rico  Vanilla  Vanilla industry  
    BHL Collections: Expanding Access to Biodiversity Literature
  167. By: Henricksen, H. C. (Henrick Christian),
    Publication info: Porto Rico Agricultural Experiment Station, 1906
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Puerto Rico  Vegetables
  168. By: Britton, Nathaniel Lord,
    Publication info: St Louis, 1915
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    Subjects: Mona Island  Plants  Puerto Rico  
  169. By: Ledru, André Pierre,
    Publication info: Puerto-Rico J. Gonzalez 1863
    Holding Institution: University of Toronto - Robarts Library
    Subjects: Description and travel  History  Natural history  Puerto Rico  
    BHL Collections: Publicaciones en Español
  170. By: Kinman, C. F. (Charles Franklin),
    Publication info: Mayagüez, P.R, Porto Rico Agricultural Experiment Station, 1921
    Holding Institution: University of Florida, George A. Smathers Libraries
    Subjects: Puerto Rico  Yams  
    BHL Collections: Expanding Access to Biodiversity Literature
  171. By: Kinman, C. F. (Charles Franklin),
    Publication info: Porto Rico Agricultural Experiment Station, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Puerto Rico  Yams
  1. By: Soto-Adames, Felipe - Taylor, Steven J.
    Type: Article
    In: ZooKeys
    Volume: 323
    Date: 2013
    Page Range: 35-74
    Publication Info: Sofia, Bulgaria Pensoft Publishers
    Subjects: cave-adaptive characters  Dicranocentruga  Phylogeny  Puerto Rico
  2. By: Burckhardt, Daniel, - Dalle Cort, Giulia - Queiroz Santana, Dalva Luiz de
    Type: Article
    In: ZooKeys
    Volume: 980
    Date: 2020
    Page Range: 119--140
    Publication Info: Sofia, Bulgaria Pensoft Publishers
    Subjects: Brazil  leaf roll galls  Mexico  Persicaria  Polygonaceae  psyllids  Puerto Rico  Sternorrhyncha
  3. By: Ospina Sánchez, Claudia - Palacios-Vargas, J. G. (José Guadalupe) - González, Grizelle
    Type: Article
    In: Zoosystematics and evolution
    Volume: 961
    Date: 2020
    Page Range: 31--39
    Publication Info: Sofia Pensoft
    Subjects: Island  Luquillo Experimental Forest  Puerto Rico  subtropical forest  taxonomy
  4. By: Konstantinov, Alexander S, - Konstantinova, Anna A
    Type: Article
    In: ZooKeys
    Volume: 155
    Date: 2011
    Page Range: 61-87
    Publication Info: Sofia, Bulgaria Pensoft Publishers
    Subjects: leaf beetles  Moss  Puerto Rico  Species diversity  West Indies
  5. By: Pesic, Vladimir - Chatterjee, Tapas - Alfaro, Monica - Schizas, Nikolaos
    Type: Article
    In: ZooKeys
    Volume: 425
    Date: 2014-7-15
    Page Range: 89--97
    Publication Info: Sofia, Bulgaria Pensoft Publishers
    Subjects: Biodiversity  marine environment  Puerto Rico  taxonomy  Water mites
  6. By: Morales Núñez, Andres - Heard, Richard W.
    Type: Article
    In: ZooKeys
    Volume: 397
    Date: 2014
    Page Range: 49-70
    Publication Info: Sofia, Bulgaria Pensoft Publishers
    Subjects: Caribbean  new species  Paratanais  Puerto Rico  Tanaidomorpha
  7. By: Franz, Nico
    Type: Article
    In: ZooKeys
    Volume: 49
    Date: 2010
    Page Range: 33-75
    Publication Info: Sofia, Bulgaria Pensoft Publishers
    Subjects: Cladistics  Colonization  Dominican Republic  endemism  historical biogeography  Mona Island  new species  Puerto Rico  taxonomy  weevils
  8. By: Lloyd, John. - Rimmer, Christopher
    Type: Article
    In: Biodiversity data journal
    Volume: 5
    Date: 2017-11-22
    Page Range: 1--11
    Publication Info: Sofia Pensoft Publishers [2013]-
    Subjects: Bicknell's Thrush  Birds  Catharus bicknelli  Elfin-woods Warbler  point counts  Puerto Rico  Setophaga angelae