Occasional papers - San Diego Society of Natural History. (San Diego Society of Natural History, 1949)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1940)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1971)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1987)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 2010)

Occasional papers of the San Diego Society of Natural History - San Diego Society of Natural History. (San Diego Society of Natural History, 1959)

Of the advancement and proficiencie of learning; or, The partitions of sciences, nine books. Written in Latin by the most eminent, illustrious and famous Lord Bacon - Bacon, Francis, 1561 -1626 (T. Williams, 1674)

Off-highway vehicle environmental impact statement and proposed plan amendment for Montana, North Dakota and portions of South Dakota, final - United States. Bureau of Land Management. Montana State Office. (U.S. Department of the Interior, Bureau of Land Management, Montana State Office, 2001)

Offering. mature plant offering. #15, September 19, 1947 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Clint McDade & Sons, 1947)

Offering. mature plants. #5-B, June, 1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Clint McDade & Sons, 1949)

Offering. white with purple lip, lavender and yellow mature plants. #6-A, August 2, 1948 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Clint McDade & Sons, 1948)

Official catalogue - International Live Stock Exposition. (Pettibone, 1908)

Official catalogue of exhibitors. Universal exposition. St. Louis, U.S.A. 1904. : Division of exhibits. Department A. Education [to H. Agriculture; J. Horticulture to P. Physical Culture; R. Livestock.] (For the Committee on press and publicity by the official catalogue company inc, 1904)

Official katalog of draft horse and cattle entries : Ohio State Fair, Columbus Ohio, August 28-September 2, 1922 (The F. J. Heer Printing Co, 1922)

Official livestock brand book for the Province of Alberta - Alberta. Brand Office. (Livestock Identification Services, 1994)

Official livestock brand book for the Province of Alberta - Alberta. Brand Office. (Livestock Identification Services, 1986)

Official livestock brand book for the Province of Alberta - Alberta. Brand Office. (Livestock Identification Services, 1988)

Official livestock brand book for the Province of Alberta - Alberta. Brand Office. (Livestock Identification Services, 2009)

Official livestock brand book for the Province of Alberta - Alberta. Brand Office. (Livestock Identification Services, 1978)

Official livestock brand book for the Province of Alberta - Alberta. Brand Office. (Livestock Identification Services, 2005)

Official livestock brand book for the Province of Alberta - Alberta. Brand Office. (Livestock Identification Services, 1992)

Official livestock brand book for the Province of Alberta - Alberta. Brand Office. (Livestock Identification Services, 1970)

Official livestock brand book for the Province of Alberta - Alberta. Brand Office. (Livestock Identification Services, 1990)

Official livestock brand book for the Province of Alberta - Alberta. Brand Office. (Livestock Identification Services, 1982)

Ohio Biological Survey notes - Ohio Biological Survey. (Ohio Biological Survey, 1999)

Olds' 1932 catalog tells the truth : 45th year : field & garden seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1932)

Olds' 1933 catalog "tells the truth" : 46th. year : seeds for field & garden, bulbs, plants, seed potatoes, tools, fertilizer, insecticides, poultry supplies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Co, 1933)

Olds' catalog, 1930, 43rd year : field & garden seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1930)

Olds' catalog, 1931, 44th year : field & garden seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1931)

Olds' golden jubilee seed book, 1937, "tells the truth" : field & garden seeds, bulbs, plants, seed potatoes, garden tools, poultry supplies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Co, 1937)

Olds seed book - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Co, 1935)

Olds seed book, 1936, 49th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Co, 1936)

Olds' seed book, 1943 edition, 56th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Co, 1943)

Olds' seed book, 1944, 57th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1944)

Olds seed book, 51st year, 1938 : field and garden seeds, bulbs, plants, seed potatoes, garden tools, poultry supplies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Co, 1938)

Olds' seed book, 52nd year, 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1939)

Olds' seed book, 53rd year, 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1940)

Olds' seed book, 54th year, 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Co, 1941)

Olds' seed book, 55th year, 1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Co, 1942)

Olds' seed book for 1934: 47th year : seeds for field & garden, bulbs, plants, tools, seed potatoes, fertilizers, insecticides, poultry supplies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Co, 1934)

Olds' seeds, 1945, 58th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1945)

Olive oil and its substitutes - Tolman, Lucius Moody, 1875 - (Govt. Print. Off, 1903)

"On gardening" - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (1935)

"On gardening" - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (1934)

"On gardening" - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (1937)

"On gardening" - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (1938)

On the trail of vanishing birds - Allen, Robert Porter, 1905 -1963 (McGraw-Hill, 1957)

The open door to independence; making money from the soil; what to do–how to do, on city lots, suburban grounds, country farms, together with outline maps of all parts of the United States, irrigated regions, climates, cities, villages, market towns, locations and populations - Hill, Thomas E. (Thomas Edie), 1832 -1915 (Hill standard book company, 1915)

Orchard & garden book, 1944 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1944)

Orchard & garden book, 1945 - Roeding, George Christian, 1868 -1928 (California Nursery Company, 1945)

Orchard & garden book, 1946 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1946)

Orchard & garden book, 1947 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1947)

Orchard and farm (Calkins Newspaper Syndicate, 1898)

Orchard and garden book : 1865-1950, 85th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Seed Company, 1950)

Orchard and garden book, 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1936)

Orchidglade : 1955 catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Jones and Scully, Inc, 1955)

Orchidglade : 1956 catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Jones and Scully, Inc, 1956)

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

Orchids, direct from Hawaii ... nature's greehouse : 1953 catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. Kirch–Orchids, 1953)

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, tropical foliage plants : 1958-1959 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Alberts & Merkel Bros., Inc, 1958)

Orchids, tropical foliage plants : 1959-1960 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Alberts & Merkel Bros., Inc, 1959)

Order California rosebushes now - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Howard Rose Company, 1940)

Oregon Nursery Company [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oregon Nursery Company, 1920)

Oregon roses and other beautiful flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Clarke Bros, 1916)

Oregon roses, perennials and rock plants, "the world's best" : fall 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Rose Nursery, Inc, 1936)

Oregon's "flower valley seeds" are best - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oregon Florists' Seed Company, 1942)

The original Barnes Brothers Nursery Co., established 1890 : 1939 varieties of better fruits and flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Barnes Bros. Nursery Co, 1939)

The Original Barnes nursery, established 1890 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Barnes Bros. Nursery Co, 1932)

Ornamental and fruit tree catalogue : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Leonard Coates Nurseries, 1926)

Ornamental and fruit trees and shrubs. a guide to Southern horticulture .... 1918 catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Royal Palm Nurseries, 1918)

Ornamental and fruit trees : price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Co, 1921)

Ornamental and fruit trees, shrubs, roses, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J. Wragg & Sons Co, 1907)

Ornamental and fruit trees, shrubs, roses, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J. Wragg & Sons Co, 1900)

Ornamental and fruit trees, shrubs, roses, etc., 1901-1902 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J. Wragg & Sons Co, 1902)

Ornamental gardening in Florida - Simpson, Charles Torrey, 1846 -1932 (The author, 1916)

Ornamental Nurseries : catalogue of shade and ornamental trees, shrubs, vines, roses, perennial plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry Kohankie & Son, 1908)

Ornamental nursery stock, broad leaved evergreen trees and plants, deciduous trees and shrubs, conifers, roses, bulbs, perennial and Alpine plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Beverly Hills Nurseries, 1929)

Ornamental plants for the home grounds : new, rare or unusual flowering shrubs, spring list, 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Shumaker's Birchmont Gardens, 1941)

Ornamental plants, reliable seeds : spring 1930 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Storrs and Harrison Co, 1930)

Ornamental trees and plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.W. Root, 1917)

Ornamental trees and plants for home grounds and other landscape gardening, fruit trees for commercial orchards and home gardens : No. 127 price list, fall 1927-spring 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (I.E. Ilgenfritz' Sons & Co, 1927)

Ornamental trees, evergreens, shrubs, perennials and rock garden plants : retail price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Van's Nursery and Landscape Service, 1938)

Ornamental trees, evergreens, shrubs, perennials and rock garden plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Van's Nursery and Landscape Service, 1947)

Ornamental trees, evergreens, shrubs, perennials and rock garden plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Van's Nursery and Landscape Service, 1941)

Ornamental trees, shrubs, roses, vines, evergreens, plants, fruits, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. & F. Nurseries, 1917)

Ornamental trees, shrubs, roses, vines, evergreens, plants, fruits, etc. [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. & F. Nurseries, 1918)

Oscar S. Witte, rose culturist : [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oscar S. Witte, 1924)

Our 100th year, pioneer nurserymen since 1847 : Ilgenfritz, the Monroe Nursery - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (I.E. Ilgenfritz' Sons & Co, 1947)

Our 36th year, 1949 : plant the best, "Burgess' blizzard belt bran", seeds, bulbs and plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Burgess Seed and Plant Co, 1949)