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  1. 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  
  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: 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
  4. 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
  5. 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
  6. 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  
  7. 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
  8. 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
  9. 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
  10. By: Tower, Winthrop Vose
    Publication info: n.p.,1910?
    Holding Institution: Cornell University Library
    Subjects: Bees  Puerto Rico
  11. 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
  12. By: Porto Rico Agricultural Experiment Station.
    Publication info: Washington :G.P.O.,1903-
    Holding Institution: Multiple institutions
    Subjects: Agriculture  Periodicals  Puerto Rico  
    BHL Collections: Expanding Access to Biodiversity Literature
  13. 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
  14. 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
  15. 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
    BHL Collections: New York Botanical Garden
  16. 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  
  17. 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
  18. 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
  19. By: Little, Elbert L. (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  
  20. 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
  21. 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
    BHL Collections: New York Botanical Garden
  22. 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
  23. By: May, D. W. (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
  24. 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
  25. 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
  26. By: Cook, O. F. (Orator Fuller), - Collins, G. N., (Guy N.
    Publication info: Washington,Govt. Print Off.,1903.
    Holding Institution: Smithsonian Libraries
    Subjects: Botany  Botany, Economic  Puerto Rico  
  27. 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
  28. 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  
  29. 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  
  30. 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
  31. 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
  32. By: Crosse, Hippolyte,
    Publication info: Paris :H. Crosse,1892.
    Holding Institution: Smithsonian Libraries
    Subjects: Mollusks  Puerto Rico  
  33. By: Howard, Richard A
    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
  34. By: Howard, Richard A
    Publication info: [1961-1966]
    Holding Institution: Harvard University Botany Libraries
    Subjects: Hawaii  Massachusetts  Plants  Puerto Rico  West Indies
  35. By: Howard, Richard A. (Richard Alden),
    Holding Institution: Harvard University Botany Libraries
    Subjects: Alabama  Dominican Republic  Florida  Maine  Plants  Puerto Rico  Roque Island
  36. By: Schubert, Bernice,
    Holding Institution: Harvard University Botany Libraries
    Subjects: Plants  Puerto Rico  
    BHL Collections: BHL Field Notes Project
  37. 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
  38. 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  
  39. 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  
  40. 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
  41. By: Vaughan, Thomas Wayland,
    Publication info: Washington :Govt. Print. Off.,1919.
    Holding Institution: Smithsonian Libraries
    Subjects: Central America  Coral reefs and islands  Corals, Fossil  Cuba  Paleontology  Puerto Rico
  42. By: Vaughan, Thomas Wayland,
    Publication info: [between 1903 and 1910].
    Holding Institution: Smithsonian Libraries
    Subjects: Antilles, Lesser  Corals, Fossil  Paleontology  Puerto Rico
  43. 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
  44. By: Berkey, Charles Peter,
    Publication info: New York :New York Academy of Sciences,1915.
    Holding Institution: Wellesley College Library (archive.org)
    Subjects: Geology  Puerto Rico
  45. 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
  46. By: Stejneger, Leonhard,
    Publication info: Washington:U.S. Government Printing Office,1904.
    Holding Institution: Smithsonian Libraries
    Subjects: Amphibians  Puerto Rico  Reptiles  
  47. 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  
  48. 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
  49. 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
  50. 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  
  51. 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 (archive.org)
    Subjects: Estuarine area conservation  Estuarine ecology  Estuarine reserves  Jobos Bay  Jobos Bay National Estuarine Research Reserve (P.R  Puerto Rico
  52. By: Blackwelder, Richard E.
    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
  53. By: Blackwelder, Richard E.
    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
  54. 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
    BHL Collections: New York Botanical Garden
  55. 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  
  56. By: Pregill, Gregory K.
    Publication info: Lawrence :The University of Kansas,1981.
    Holding Institution: Smithsonian Libraries
    Subjects: Geology, Stratigraphic  Paleontology  Pleistocene  Puerto Rico  Vertebrates, Fossil
  57. By: Perkins, Janet R. (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: New York Botanical Garden
  58. 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  
  59. By: Kinman, 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
  60. 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
  61. 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
  62. 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  
  63. 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
  64. By: Hall, E. Raymond (Eugene Raymond), - Tamsitt, J. R. - Royal Ontario Museum.
    Publication info: Toronto :Royal Ontario Museum,c1968.
    Holding Institution: Royal Ontario Museum (archive.org)
    Subjects: Mammals  Puerto Rico  Stenoderma rufum
  65. 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
  66. 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
  67. 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
  68. 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
  69. 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
  70. By: Blackwelder, Richard E.
    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
  71. 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
  72. 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  
  73. By: Schubert, Bernice,
    Holding Institution: Harvard University Botany Libraries
    Subjects: Costa Rica  Cuba  Panama  Plants  Puerto Rico  
    BHL Collections: BHL Field Notes Project
  74. By: Garber, Abraham Pascal, - 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
  75. 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  
  76. 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
    BHL Collections: New York Botanical Garden
  77. 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
  78. 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
  79. 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
  80. 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
  81. 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
  82. 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
  83. 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
  84. 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
  85. By: Little, Elbert L. (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
  86. 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  
  87. 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 (archive.org)
    Subjects: Fishes  Habitat  Puerto Rico  Virgin Islands of the United States  Wetland conservation  Wetland ecology  
    BHL Collections: Publicaciones en Español
  88. 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
  89. 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  
  90. 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
    BHL Collections: New York Botanical Garden
  91. By: New York Academy of Sciences.
    Publication info: New York, :The Academy,1919-60.
    Holding Institution: University of Michigan (archive.org)
    Subjects: Puerto Rico  Scientific Expeditions  Virgin Islands of the United States  
  92. 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
  93. 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
  94. 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
  95. 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
  96. 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  
  97. 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
  98. 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
  99. 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
    BHL Collections: New York Botanical Garden
  100. 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 (archive.org)
    Subjects: Bats  Listrophoridae  Mites  Parasites  Puerto Rico
  101. 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
  102. 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
  103. By: Hill, R. G. (Robert George), - Hawkins, Lon A.
    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
  104. 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 | New York Botanical Garden | Publicaciones en Español
  105. By: Fernández y Jiménez, José María.
    Publication info: Habana :Impr. y taller de encuadernacion "La Fortuna",1867.
    Holding Institution: National Library of Medicine (archive.org)
    Subjects: Cuba  Puerto Rico  Trees  
    BHL Collections: Publicaciones en Español
  106. 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  
  107. 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  
  108. 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  
  109. By: Little, Elbert L. (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
    Subjects: Puerto Rico  Trees  
  110. 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
  111. 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  
    BHL Collections: New York Botanical Garden
  112. By: Ledru, André Pierre,
    Publication info: Puerto-RicoJ. Gonzalez1863
    Holding Institution: University of Toronto - Robarts Library
    Subjects: Description and travel  History  Natural history  Puerto Rico  
    BHL Collections: Publicaciones en Español
  113. 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
  1. By: Soto-Adames, Felipe - Taylor, Steven J.
    Type: Article
    In: ZooKeys
    Volume: 323
    Date: 2013
    Page Range: 35-74
    Publication info: Pensoft Publishers 2013
    Subjects: cave-adaptive characters  Dicranocentruga  Phylogeny  Puerto Rico
  2. By: Ospina Sánchez, Claudia - Palacios-Vargas, J. G. (José Guadalupe) - González, Grizelle
    Type: Article
    In: ZooKeys
    Volume: 961
    Date: 2020
    Page Range: 31-39
    Publication info: Pensoft Publishers 2020
    Subjects: Island  Luquillo Experimental Forest  Puerto Rico  subtropical forest  taxonomy
  3. By: Konstantinov, Alexander - Konstantinova, Anna
    Type: Article
    In: ZooKeys
    Volume: 155
    Date: 2011
    Page Range: 61-87
    Publication info: Pensoft Publishers 2011
    Subjects: leaf beetles  Moss  Puerto Rico  Species diversity  West Indies
  4. By: Morales Núñez, Andres - Heard, Richard W.
    Type: Article
    In: ZooKeys
    Volume: 397
    Date: 2014
    Page Range: 49-70
    Publication info: Pensoft Publishers 2014
    Subjects: Caribbean  new species  Paratanais  Puerto Rico  Tanaidomorpha
  5. By: Franz, Nico
    Type: Article
    In: ZooKeys
    Volume: 49
    Date: 2010
    Page Range: 33-75
    Publication info: Pensoft Publishers 2010
    Subjects: Cladistics  Colonization  Dominican Republic  endemism  historical biogeography  Mona Island  new species  Puerto Rico  taxonomy  weevils