Plant explorations : ornamentals in the Netherlands, West Germany, and Belgium - Meyer, Frederick G. 1917 -2006 (Agricultural Research Service, U.S. Dept. of Agriculture, 1963)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1934)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1956)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1966)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1967)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1968)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1969)

Plantae Bequaertianae; études sur les récoltes botaniques du Dr. J. Bequaert, chargé de missions au Congo Belge (1913-1915) - Wildeman, E. de (Emile), 1866 -1947 (A. Hoste; [etc., etc.], 1921)

Plantarum vascularium genera :secundum ordines naturales digesta eorumque differentiae et affinitates tabulis diagnostacis expositae - Weidmann. (Libraria Weidmannia, 1836)

Les plantes de serre; description, culture, emploi des espèces ornementales ou intéressantes cultivées dans les serres de l'Europe - Bellair, Georges Adolphe, 1860 -1939 (Octave Doin, 1900)

Planting guide - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waynesboro Nurseries, Inc, 1942)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1990)

Plants that bloom - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kingsville Nurseries, 1934)

Plants that bloom : specialties: Japanese cherries, Chinese crabs, French lilacs, pink dogwood - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kingsville Nurseries, 1935)

Plate book of Hill's evergreens : containing sixty color plates of leading evergreens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (D. Hill Nursery Company, 1948)

Plate book of Hill's evergreens : containing sixty color plates of leading evergreens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (D. Hill Nursery Company, 1949)

Poisonous reptiles of the world: a wartime handbook - Cochran, Doris M., (Doris Mable), 1898 -1968 (Smithsonian Institution, 1943)

The poisonous terrestrial snakes of our British Indian dominions, including Ceylon, and how to recognize them; with symptoms of snake poisoning and treatment - Wall, Frank, 1868 -1950 (Bombay Natural History Society, 1913)

The poisonous terrestrial snakes of our British Indian dominions and how to recognise them - Wall, Frank, 1868 -1950 (Bombay Natural History Society, 1908)

Pontiac Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pontiac Nursery Company, 1940)

Popular gardening and fruit growing; An illustrated periodical devoted to horticulture in all its branches (Popular gardening publishing company, 1890)

A popular history of British sea-weeds, comprising their structure, fructification, specific characters, arrangement, and general distribution, with notices of some of the fresh-water Algae - Landsborough, D. (David), 1779 -1854 (Reeve and Benham, 1851)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1901)

Porter-Walton's garden book - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Porter-Walton Co, 1948)

Porter-Walton's garden book no. 47 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Porter-Walton Co, 1947)

Postilla - Peabody Museum of Natural History. (Peabody Museum of Natural History, 1969)

Postilla - Peabody Museum of Natural History. (Peabody Museum of Natural History, 1973)

Postilla - Peabody Museum of Natural History. (Peabody Museum of Natural History, 1999)

Powell Valley Nursery, Gresham, Oregon - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Powell Valley Nursery, 1947)

The powers of the Creator displayed in the creation; or, Observations on life amidst the various forms of the humbler tribes of animated nature - Dalyell, John Graham, 1775 -1851 (J. Van Voorst, 1853)

The powers of the Creator displayed in the creation; or, Observations on life amidst the various forms of the humbler tribes of animated nature - Dalyell, John Graham, 1775 -1851 (J. Van Voorst, 1851)

Practical hints on planting ornamental trees, with particular reference to coniferae... - Noble, Charles, Nurseryman, (Bradbury and Evans, 1852)

Practical zoölogy : an elementary text-book treating of the structure, life, history, and relations of animals - Davison, Alvin, 1868 -1915 (American Book Company, 1906)

Pre-inventory price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (D. Hill Nursery Company, 1956)

Pre-inventory price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (D. Hill Nursery Company, 1955)

Pre-inventory price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (D. Hill Nursery Company, 1954)

Pre-inventory price list July, 1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (D. Hill Nursery Company, 1952)

The preferred stock. April 2, 1932 Bulletin No. 7 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Jackson & Perkins Company, 1932)

The preferred stock for the trade : fall 1931 - spring 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Jackson & Perkins Company, 1931)

The preferred stock for the trade : fall 1932-spring 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Jackson & Perkins Company, 1932)

Preferred stock trade price list Bulletin No. 3 January 17, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Jackson & Perkins Company, 1935)

Preferred stock trade price list Bulletin No. 5 March 22, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Jackson & Perkins Company, 1935)

Preservation of natural features and scenic views in New York City - Clarke & Rapuano. (The Department, 1974)

[Price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Moore's Nurseries, 1940)

[Price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Moore's Nurseries, 1941)

[Price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Moore's Nurseries, 1942)

Price list - Elm City Nursery Co. (Elm City Nursery Co, 1912)

Price list - Elm City Nursery Co. (Elm City Nursery Co, 1913)

Price list - Elm City Nursery Co. (Elm City Nursery Co, 1914)

Price list - Elm City Nursery Co. (Elm City Nursery Co, 1915)

Price list - Elm City Nursery Co. (Elm City Nursery Co, 1916)

Price list - Elm City Nursery Co. (Elm City Nursery Co, 1919)

Price list - Elm City Nursery Co. (Elm City Nursery Co, 1920)

Price list - Elm City Nursery Co. (Elm City Nursery Co, 1918)

Price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (White Elm Nursery Co, 1934)

Price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Muskogee Greenhouse Company, 1942)

Price list No. 30 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Golf Nursery, 1947)

Price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Baker Bros. Nursery, 1935)

Price list Catalogue no. 9 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hillsdale Landscape Company, 1949)

Price list, 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mission Gardens, 1939)

Price list, 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mission Gardens, 1941)

Price list, 1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (John M. Eisler Nurseries, 1942)

Price list, 1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mission Gardens, 1942)

Price list, 1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (John M. Eisler Nurseries, 1943)

Price list, 1944 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (John M. Eisler Nurseries, 1944)

Price list, 1944 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mission Gardens, 1944)

Price list, 1946 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Woodcock Nurseries, 1946)

Price list, 1947 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Woodcock Nurseries, 1947)

Price list, 1948 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (John M. Eisler Nurseries, 1948)

Price list, 1948 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Woodcock Nurseries, 1948)

Price list, 1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pound Ridge Nursery, 1949)

Price list 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pound Ridge Nurseries, 1950)

Price list, 1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Adams Nursery, Inc, 1953)

Price list, 1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Adams Nursery, Inc, 1954)

Price list. choice trees, evergreens, shrubs, vines, roses, etc 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Elm City Nursery Co, 1919)

Price list : complete landscape department : nursery stock of distinction - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Westminster Nurseries, 1945)

Price list : fall, 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Westcott Nursery Company, 1929)

Price list : fall 1932 and spring 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Donaldson Nurseries, 1932)

Price list : fall 1935 spring 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Donaldson Nurseries, 1935)

Price list : fall 1937, spring 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Donaldson Nurseries, 1937)

Price list : fall, 1938 spring, 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Chandler Landscape & Floral Co, 1938)

Price list : fall, 1939 spring, 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Chandler Landscape & Floral Co, 1939)

Price list, fall 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Donaldson Nurseries, 1940)

Price list : fall 1940-spring 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Chandler Landscape & Floral Co, 1940)

Price list : fall 1941 and spring 1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Donaldson Nurseries, 1941)

Price list : graded nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bloodgood Nurseries, 1916)

Price list : Hillsdale Nurseries Catalogue no. 10 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hillsdale Landscape Company, 1951)

Price list, no. 27 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Golf Nursery, 1944)

Price list [of] graded nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bloodgood Nurseries, 1917)

Price list of nursery stock of the F. & F. Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. & F. Nurseries, 1924)

Price list of nursery stock of the F. & F. Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. & F. Nurseries, 1923)

Price list of ornamentals and other nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Dixie View Nurseries, 1926)

Price list of the Fremont Nursery : season of 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fremont Nursery Co, 1930)

Price list of the Fremont Nursery : season of 1932 : prices further reduced - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fremont Nursery Co, 1932)

Price list of trees, shrubs, plants and evergreens : spring 1918 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. Warner Harper, 1918)

Price list of White Elm Nursery Co. ... for 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (White Elm Nursery Co, 1936)

Price list of White Elm Nursery Co. ... for 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (White Elm Nursery Co, 1939)

Price list of White Elm Nursery Co., spring 1945 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (White Elm Nursery Co, 1945)

Price list of young ornamental trees and shrubs for planting in nursery rows : spring 1948 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas B. Meehan Co, 1948)

Price list retail spring of 1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Swartz Nurseries, 1952)

Price list, spring 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Donaldson Nurseries, 1932)

Price list, spring 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Donaldson Nurseries, 1939)

Price list, spring 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Donaldson Nurseries, 1940)

Price-list taking effect October, 1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Klehm's Nurseries, 1915)

The primary factors of organic evolution - Cope, E. D. (Edward Drinker), 1840 -1897 (Open Court Pub. Co, 1904)

The primary factors of organic evolution - Cope, E. D. (Edward Drinker), 1840 -1897 (The Open court publishing company, 1904)

The primary factors of organic evolution - Cope, E. D. (Edward Drinker), 1840 -1897 (The Open Court Publishing Company, 1896)

Prince's select catalogue of fruit & ornamental trees, plants, &c., extracted from their general catalogues of which copies exist in almost every town of the union, and which can be referred to by those who desire more extensive assortments - Wm. R. Prince & Co. (Wm. R. Prince & Co, 1854)

Prince's select catalogue of fruit & ornamental trees, plants, &c., extracted from their general catalogues of which copies exist in almost every town of the union, and which can be referred to by those who desire more extensive assortments - Wm. R. Prince & Co. (Wm. R. Prince & Co, 1855)

Prince's select catalogue of the unrivaled collection of fruit & ornamental trees and shrubs, vines, creepers, p©onies, &c. : cultivated at the Linn©an Botanic Garden & Nurseries (founded 1732), Flushing, near New-York - Wm. R. Prince & Co. (s.n, 1863)

Prince's Select Descriptive Catalogue of the Unrivaled Collection of Fruit & Ornamental Tree and Shrubs, Vines, Creepers, Paeonies, &c., Cultivated at the Linnaean Botanic Garden and Nurseries, Flushing, Near New York - Wm. R. Prince & Co. (Wm. R. Prince & Co, 1857)

Prince's select descriptive catalogue of the unrivaled collection of fruit & ornamental trees and shrubs, vines, creepers, p©onies, &c. : cultivated at the Linn©an Botanic Garden & Nurseries, Flushing, near New York - Wm. R. Prince & Co. (s.n, 1860)

Prince’s select catalogue of the unrivaled collection of fruit & ornamental trees and shrubs, vines, creepers, pæonies, &c. : cultivated at the Linnæan Botanic Garden & Nurseries (founded 1732), Flushing, near New-York - Wm. R. Prince & Co. (Wm. R. Prince & Co, 1863)

Prince’s select descriptive catalogue of the unrivaled collection of fruit & ornamental trees and shrubs, vines, creepers, pæonies, &c. : cultivated at the Linnæan Botanic Garden & Nurseries, Flushing, near New York - Wm. R. Prince & Co. (Wm. R. Prince & Co, 1860)

Principles of animal biology - Shull, A. Franklin (Aaron Franklin), 1881 -1961 (McGraw-Hill, 1920)

Principles of animal biology - Larue, George R. 1882 - (McGraw-Hill book company, inc, 1946)

The principles of biology, by J. I. Hamaker - Hamaker, John Irvin, 1869 - (P. Blakiston, 1913)

The principles of biology - Hamaker, J. I. (John Irvin), 1869 - (P. Blakiston's Sons & Co, 1913)

Principles of economic zoölogy - Daugherty, L. S. (Lewis Sylvester) 1857 -1919 (W. B. Saunders Company, 1917)

Principles of economic zoo̤logy - Daugherty, L. S. (Lewis Sylvester) 1857 -1919 (W.B. Saunders, 1915)

Principles of economic zoölogy - Daugherty, L. S. (Lewis Sylvester) 1857 -1919 (W. B. Saunders, 1917)

Principles of economic zoölogy - Daugherty, L. S. (Lewis Sylvester) 1857 -1919 (W. B. Saunders company, 1912)

Principles of economic zoölogy - Daugherty, L. S. (Lewis Sylvester) 1857 -1919 (W.B. Saunders, 1912)

Principles of modern biology - Marsland, Douglas, 1899 - (Holt, Rinehart and Winston, 1899)

Principles of stratigraphy - Grabau, Amadeus W. (Amadeus William), 1870 -1946 (A.G. Seiler and company, 1913)

Principles of zoölogy : a guide for beginners - Schiedt, Richard Francis Conrad, 1859 -1951 (Examiner Printing House, 1892)

Proceedings - Natural History Society of Maryland (1941)

Proceedings - Natural History Society of Maryland (1943)

Proceedings - Dorset Natural History; Archaeological Society.

Proceedings and transactions of the Royal Society of Canada. Délibérations et mémoires de la Société royale du Canada - Royal Society of Canada. (Société royale du Canada, 1887)

Proceedings and transactions of the Royal Society of Canada. Délibérations et mémoires de la Société royale du Canada - Royal Society of Canada. (Société royale du Canada, 1904)

Proceedings - Dorset Natural History and Archaeological Society - Dorset Natural History; Archaeological Society. (1877)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1846)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1859)