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 (The Open court publishing company, 1904)

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, 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 - Shull, A. Franklin (Aaron Franklin), 1881 -1961 (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 company, 1912)

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, 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)

PRN inc : 1961 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Poundridge Nurseries, Inc, 1961)

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)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1861)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1863)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1864)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1868)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1908)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1913)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1841)

Proceedings of the American Academy of Arts and Sciences - American Academy of Arts; Sciences. (Metcalf and Co, 1874)

Proceedings of the American Academy of Arts and Sciences - American Academy of Arts; Sciences. (Metcalf and Co, 1882)

Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1895)

Proceedings of the Asiatic Society of Bengal - Asiatic Society of Bengal ([The Society], 1888)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1903)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1902)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1959)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1963)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1966)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1969)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1977)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1986)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1987)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1988)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1990)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1992)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1993)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1994)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1996)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1997)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1998)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1999)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 2000)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 2001)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 2002)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 2003)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 2004)

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Proceedings of the Bournemouth Natural Science Society - Bournemouth Natural Science Society (1949)

Proceedings of the Bournemouth Natural Science Society - Bournemouth Natural Science Society (1970)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1939)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1954)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1956)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1953)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1963)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1960)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1962)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1969)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1968)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1970)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1979)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1977)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1988)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1989)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1990)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1995)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1997)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1998)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 2002)