Orchard and garden (J.T. Lovett, 1889)

The Orchid review (Orchid Review ltd.], 1910)

The Orchid review (Orchid Review ltd.], 1911)

The Orchid review (Orchid Review ltd.], 1913)

The Orchid world. A monthly illustrated journal entirely devoted to orchidology - Wilson, Gurney, 1878 - (Alabaster, Passmore & Sons, ltd., printers], 1911)

Orchids - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lager & Hurrell, 1939)

Orchids - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L. Sherman Adams Co, 1943)

Orchids : direct from Hawaii, nature's greenhouse - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. Kirch-Orchids, 1954)

Orchids direct from Hawaii - nature's greenhouse : 1955 catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. Kirch-Orchids, Ltd, 1955)

Orchids direct from Hawaii - nature's greenhouse : 1957 catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. Kirch-Orchids, Ltd, 1957)

Orchids from Hawaii - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oscar M. Kirsch, 1954)

Orchids from Hawaii - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oscar M. Kirsch, 1957)

Orchids from Hawaii - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oscar M. Kirsch, 1958)

Order your rose bushes now! to plant this spring - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (B.F. Barr Nurseries, 1942)

Oregon grown, better blooming gladiolus bulbs : 1932 price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Westmoreland Gardens, 1932)

Oregon grown, better blooming gladiolus bulbs : 1933 price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Westmoreland Gardens, 1933)

Oregon grown gladiolus bulbs : 1929 [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bettendorf's, 1929)

Oregon grown gladiolus bulbs, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bettendorf's, 1930)

Oregon grown gladiolus bulbs and delphiniums : wholesale and retail price list, 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Beauty Gardens, 1928)

Oregon grown gladiolus bulbs and delphiniums : wholesale price list, spring 1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Beauty Gardens, 1927)

Oregon grown gladiolus bulbs : February–1930–March [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cascade Gardens, 1930)

Oregon grown gladiolus bulbs : January, 1926 [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph J. Rooney, 1926)

Oregon grown gladiolus bulbs : January, 1927 [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph J. Rooney, 1927)

Oregon grown gladiolus bulbs : January, 1928 [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph J. Rooney, 1928)

Oregon grown gladiolus bulbs : January, 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph J. Rooney, 1929)

Oregon grown gladiolus bulbs : January, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph J. Rooney, 1930)

Oregon grown gladiolus bulbs : January, 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph J. Rooney, 1931)

Oregon grown gladiolus bulbs : March, 1927 [price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph J. Rooney, 1927)

Oregon grown gladiolus bulbs : wholesale price list : fall, 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.C. Piper, 1926)

Oregon grown gladiolus : spring 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Redwood Nurseries, 1931)

Oregon grown gladiolus : spring 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Redwood Nurseries, 1932)

Oregon grown gladiolus : spring 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Redwood Nurseries, 1933)

Oregon grown gladiolus, spring 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Redwood Nurseries, 1934)

Organization lists of the agricultural colleges and experiment stations in the United States : with a list of agricultural experiment stations in foreign countries - United States. Office of Experiment Stations. (G.P.O, 1899)

Origin and history of all the pharmacopeial vegetable drugs, chemicals and preparations with bibliography... Prepared under the auspices of and pub. by the American drug manufacturers' association, Washington, D.C - Lloyd, John Uri, 1849 -1936 (The Caxton press, 1921)

Ornamental trees & plants : no. 2 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Maple Avenue Nurseries, 1901)

Ornamental trees, evergreens, shrubs, roses, bulbs and plants for the garden : 1898-1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Danker Florist, 1925)

Ornamental trees, evergreens, shrubs, roses, bulbs and plants for the garden : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Danker Florist, 1926)

The Ornithologist - McCollum, Charles Leroy, 1865 - (1885)

Ornithology and oo¨logy of New England: containing full descriptions of the birds of New England, and adjoining states and provinces - Samuels, Edward A. (Edward Augustus), 1836 -1908 (Nichols and Noyes, 1867)

Ornithology and oölogy of New England: containing full descriptions of the birds of New England, and adjoining states and provinces ... - Samuels, Edward A. (Edward Augustus), 1836 -1908 (Nichols and Noyes, 1867)

The ornithology of Illinois - Ridgway, Robert, 1850 -1929 (H.W. Rokker, printer, 1889)

The ornithology of Illinois. Part I. Descriptive catalogue - Ridgway, Robert, 1850 -1929 (H. W. Rokker, Printer, 1889)

The ornithology of Illinois - Ridgway, Robert, 1850 -1929 (H. W. Rokker, printer, 1889)

The ornithology of Illinois - Ridgway, Robert, 1850 -1929 (H.W. Rokker, printer, 1885)

O.S.U. naturalist - Ohio State University. Biological Club. (Biological Club of Ohio State University, 1901)

O.S.U. naturalist - Ohio State University. Biological Club. (Biological Club of Ohio State University, 1902)

O.S.U. naturalist - Ohio State University. Biological Club. (Biological Club of Ohio State University, 1903)

Our 1918 catalog of seeds, bulbs, roses, trees, birds, poultry and garden supplies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Routledge Seed & Floral Co, 1918)

Our 50th anniversary, 1905-1955 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Burnett Bros., Inc, 1955)

Our eleventh annual fall list, 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Seabrook Nurseries, 1934)

Our native trees and how to identify them : a popular study of their habits and their peculiarities - Keeler, Harriet L. (Harriet Louise), 1846 -1921 (C. Scribner's Sons, 1900)

Our native trees and how to identify them; a popular study of their habits and their peculiarities - Keeler, Harriet L. (Harriet Louise), 1846 -1921 (C. Scribner's Sons, 1912)

Our native trees and how to identify them; a popular study of their habits and their peculiarities - Keeler, Harriet L. (Harriet Louise), 1846 -1921 (C. Scribner's Sons, 1913)

Our native trees and how to identify them; a popular study of their habits and their peculiarities - Keeler, Harriet L. (Harriet Louise), 1846 -1921 (C. Scribner's Sons, 1910)

Our native trees and how to identify them; a popular study of their habits and their peculiarities - Keeler, Harriet L. (Harriet Louise), 1846 -1921 (C. Scribner's Sons, 1917)

Our native trees and how to identify them a popular study of their habits and their peculiarities - Keeler, Harriet L. (Harriet Louise), 1846 -1921 (McClelland, Goodchild & Stewart, 1900)

Our native trees and how to identify them; a popular study of their habits and their peculiarities - Keeler, Harriet L. (Harriet Louise), 1846 -1921 (Scribner, 1902)

Our new guide to rose culture - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1902)

Our new guide to rose culture : 1891 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1900)

Our new guide to rose culture : 1905 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1906)

Our northern and eastern birds : containing descriptions of the birds of the northern and eastern states and British provinces; together with a history of their habits, times of arrival and departure, their distribution, food, song, time of breeding, and a careful and accurate description of their nests and eggs - Samuels, Edward A. (Edward Augustus), 1836 -1908 (R. Worthington, 1883)

Our northern and eastern birds. Containing descriptions of the birds of the northern and eastern states and British provinces; together with a history of their habits, times of arrival and departure, their distribution, food, song, time of breeding, and a careful and accurate description of their nests and eggs ... - Samuels, Edward A. (Edward Augustus), 1836 -1908 (R. Worthington, 1883)

Our northern and eastern birds containing descriptions of the birds of the northern and eastern states and British provinces, together with a history of their habits, times of arrival and departure, their distribution, food, song, time of breeding, and a careful and accurate description of their nests and eggs ; with illustrations of many species of the birds and accurate figures of their eggs - Samuels, Edward A. (Edward Augustus), 1836 -1908 (R. Worthington, 1883)

Outlines of lectures on materia medica and botany :delivered in Jefferson Medical College, Philadelphia - Barton, William P. C. (William Paul Crillon), 1786 -1856 (Joseph G. Auner, 1827)

Outlines of the first course of Yale agricultural lectures - Olcott, Henry Steel, 1832 -1907 (C.M. Saxton, Barker & Co, 1860)

Outlines of the first course of Yale agricultural lectures - Olcott, Henry Steel, 1832 -1907 (C. M. Saxton, Barker & co, 1860)

The oyster industry - United States. Bureau of Fisheries. (Govt. Print. Off, 1881)

The Palæontological report : as prepared for the Geological report of Kentucky and published in vol. 3 - Lesquereux, Léo, 1806 -1889 (A.G. Hodges, 1857)

Palaeontology - Palaeontological Association (Palaeontological Association, 1989)

Paleontological research - Nihon Koseibutsu Gakkai (Palaeontological Society of Japan, 1999)

The Paleontologist - James, U. P. 1811 -1889 (U.P. James, 1878)

Paleontology of the Eureka district - Walcott, Charles D. (Charles Doolittle), 1850 -1927 (Govt. print. off, 1884)

The Paleozoic fishes of North America / by John Strong Newberry - Newberry, J. S. (John Strong), 1822 -1892 (Govt. print. off, 1889)

The Paleozoic fishes of North America - Newberry, J. S. (John Strong), 1822 -1892 (G.P.O, 1889)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1916)

Pamphlets on forest utilization (1900)

Pamphlets on forestry (1900)

Pamphlets on forestry in Ohio (1900)

Pamphlets on forestry in Pennsylvania (1900)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1971)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1974)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1975)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1976)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1979)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1980)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1981)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1992)

Panama, 1944 : reference materials, addresses of contacts, passport photographs, news clippings, and memorabilia - Wetmore, Alexander, 1886 -1978 (1944)

Panama, 1958 : to visit the Canal Zone Biological Area and to collect bird specimens in the Canal Zone, Bocas del Toro, Cocle, La Jagua, and on Isla Escudo de Veraguas; Assisted by Beatrice Thielen Wetmore; Correspondence, reference materials, expense records, travel notes, photographs and photographic records, field report, and memorabilia. Correspondents include Herbert Friedmann and Louise M. Pearson - Wetmore, Alexander, 1886 -1978 (1958)

Papers and published notes : 1869 to 1876 - Goode, G. Brown (George Brown), 1851 -1896 (1869)

Papers, chiefly anatomical, presented at the Portland Meeting of the American Association for the Advancement of Science, August 1873 - American Association for the Advancement of Science. (Salem Press, 1874)

Papers on botany - Stout, A.B. (Arlow Burdette ) 1876 -1957 (1924)

Papers on deciduous-fruit insects (U.S. Dept. of Agriculture, 1918)

Papers on mammalogy - Field Museum of Natural History. (Field Museum of Natural History, 1941)

Papers on Unionidae - Ortmann, Arnold E. 1863 -1927 (1908)

Paragon chestnut trees and chestnut grafting wood - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Paragon Nut & Fruit Company, 1902)

Park and cemetery and landscape gardening - Haight, R. J. (Rufus J.) (R.J. Haight, 1902)

Park and cemetery and landscape gardening - Haight, R. J. (Rufus J.) (R.J. Haight, 1903)

Park and cemetery and landscape gardening - Haight, R. J. (Rufus J.) (R.J. Haight, 1905)

Park and cemetery and landscape gardening - Haight, R. J. (Rufus J.) (R.J. Haight, 1907)

Park and cemetery and landscape gardening - Haight, R. J. (Rufus J.) (R.J. Haight, 1908)

Park and cemetery and landscape gardening - Haight, R. J. (Rufus J.) (R.J. Haight, 1912)

Park and cemetery and landscape gardening - Haight, R. J. (Rufus J.) (R.J. Haight, 1913)

Park and cemetery and landscape gardening - Haight, R. J. (Rufus J.) (R.J. Haight, 1915)

Park's floral guide : 1914 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1914)

Park's flower book : choice dependable seeds 1868, 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1950)

Park's flower book for 1951 : all the best of new & old : always dependable 1868-1951 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George W. Park Seed Co, 1951)

Park's flower book for 1952 : "all the best of new and old" - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1952)

Park's flower book for 1953 : seeds, bulbs, plants : "all the best of new and old" - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1953)

Park's flower book for 1954 : seeds, bulbs, plants : "all the best of new and old" - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1954)

Park's flower book for 1955 : "all the best of new and old" : seeds, bulbs, plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1955)

Park's flower book for 1957 : "all the best of new and old" in all the floral kingdom : seeds, bulbs, plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1957)

Park's flower book for 1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1958)

Park's flower book for 1959 : "all the best of new and old" in all the floral kingdom : seeds, bulbs, plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1959)

Park's flower book for florists, 1957 : "all the best of new and old" : wholesale price list (for florists and growers only) - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1957)

Park's flower book of choice dependable seeds : 1948 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1948)

Park's flower book of choice dependable seeds : 1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1949)

Park's flower book : spring 1947 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Company, 1947)

Parsons' national register of pacing horses : record of pedigrees and a full summary of pacing performaces for the year 1890 - Parsons, Thomas C. (National Standard Pacing Horse Breeders, 1891)

Part I. The living flora of West Virginia - Millspaugh, Charles Frederick, 1854 -1923 (Wheeling news litho. co, 1913)

The passenger pigeon, its natural history and extinction - Schorger, A. W. (Arlie William), 1884 -1972 (University of Wisconsin Press, 1955)

Patent list - Roark, R. C. (Ruric Creegan) ([The Bureau], 1934)

Pater mundi, or, Doctrine of evolution : being in substance lectures delivered in various colleges and theological seminaries - Burr, E. F. (Enoch Fitch), 1818 -1907 (Noyes, Holmes, 1873)

The peaches of New York - New York (State). Dept. of Agriculture. (J.B. Lyon Company, printers, 1917)

The peaches of New York - Howe, G. H. 1888 - (J.B. Lyon Co., printer, 1917)

The pears of New York - New York State Agricultural Experiment Station. (J. B. Lyon company, 1921)