Perennial plants : fall, 1938, wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph F. Martin Co, 1938)

Perennial plants : fall catalog-1954, wholesale only : our 34th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Joseph F. Martin Co, 1954)

Perennial plants : spring 1945 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Martin-Pratt Seed Co, 1945)

Perennial plants : spring 1947 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph F. Martin Co, 1947)

Perennial plants : spring 1948, wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph F. Martin Co, 1948)

Perennial plants : spring 1949, wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Joseph F. Martin Co, 1949)

Perennial plants : spring catalog 1950, wholesale only : 30th anniversary edition - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Joseph F. Martin Co, 1950)

Perennial plants : spring catalog 1951, wholesale only : our 31st year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Joseph F. Martin Company, 1951)

Perennial plants : spring catalog 1952, wholesale only : our 32nd year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Joseph F. Martin Company, 1952)

Perennial plants : spring catalog 1953, wholesale only : our 33rd year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Joseph F. Martin Company, 1953)

Perennial plants : spring catalog 1954, our 34th year : wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Joseph F. Martin Company, 1954)

Perennial specialties, 1937 spring trade list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.J. Snyder, 1937)

Perennial specialties, 1938 spring trade list of perennials and rock plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.J. Snyder, 1938)

Perennial specialties, 1939 spring trade list of perennials and rock plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.J. Snyder, 1939)

Perennial specialties, 1942 spring trade list of perennials and rock plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.J. Snyder, 1942)

Perennial specialties, 1943 fall trade list of perennials and rock plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.J. Snyder, 1943)

Perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cheltenham Nurseries, 1933)

Perennials, a speciality : wholesale price list, spring, 1959 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bentley's Hardy Plants, 1959)

Perennials and rock plants for 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitzonka's Pansy Farm, 1936)

Perennials, rock plants, cut flowers, seedling annuals, bulbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hildemere Gardens, 1935)

Perennials, rock plants, cut flowers, seedling annuals, bulbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hildemere Gardens, 1939)

Perennials, rock plants, cut flowers, seedling annuals, bulbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hildemere Gardens, 1940)

Perennials, rock plants, cut flowers, seedling annuals, bulbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hildemere Gardens, 1936)

Perennials, rock plants, cut flowers, seedling annuals, bulbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hildemere Gardens, 1941)

Perennials, rock plants, cut flowers, seedling annuals, bulbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hildemere Gardens, 1938)

Perennials, rock-plants for 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitzonka's Pansy Farm, 1937)

Perennials, rock-plants for 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitzonka's Pansy Farm, 1938)

Perennials, rock-plants for 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitzonka's Pansy Farm, 1939)

Perennials, rock plants for 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitzonka's Pansy Farm, 1950)

Perennials, shrubs, azaleas : wholesale trade list, fall, 1957 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1957)

Perennials, shrubs, azaleas : wholesale trade list, spring, 1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, Inc, 1958)

Perennials, shrubs, bulbs : wholesale trade list, fall, 1956 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1956)

Perennials, shrubs, bulbs : wholesale trade list, spring, 1957 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1957)

Perennials, shrubs, roses, bulbs : fall, 1951 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1951)

Perennials, shrubs, roses, bulbs : retail, fall, 1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1952)

Perennials, shrubs, roses, bulbs : retail, fall, 1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1953)

Perennials, shrubs, roses, bulbs : retail price list, fall, 1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1954)

Perennials, shrubs, roses, bulbs : retail price list, spring, 1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1954)

Perennials, shrubs, roses, bulbs : retail, spring, 1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1953)

Perennials, shrubs, roses, bulbs : spring, 1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1952)

Perennials, shrubs, roses, bulbs : spring, 1956 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1956)

Perennials, shrubs, roses, bulbs : wholesale trade list, fall, 1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1954)

Perennials, shrubs, roses, bulbs : wholesale trade list, fall, 1955 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1955)

Perennials, shrubs, roses, bulbs : wholesale trade list, fall, 1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1952)

Perennials, shrubs, roses, bulbs : wholesale trade list, fall, 1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1953)

Perennials, shrubs, roses, bulbs : wholesale trade list, spring, 1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1954)

Perennials, shrubs, roses, bulbs : wholesale trade list, spring, 1955 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1955)

Perennials, shrubs, roses, bulbs : wholesale trade list, spring, 1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1953)

Perennials, shrubs, roses, bulbs : wholesale trade list, spring, 1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Springbrook Gardens, 1952)

Pesticides documentation bulletin - National Agricultural Library (U.S.) (National Agricultural Library, U.S. Dept. of Agriculture, #c 1965-1969, 1965)

Petites nouvelles entomologiques (E. Deyrolle, 1869)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1911)

Pharmacographia indica :A history of the principal drugs of vegetable origin, met with in British India - Dymock, William, 1834 -1892 (K. Paul, Trench, Trübner & co., ld; [etc. etc.], 1892)

Pharmacographia indica a history of the principal drugs of vegetable origin, met with in British India - Dymock, William, 1834 -1892 (K. Paul, Trench, Trübner, 1890)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1912)

The Philosophical magazine and journal : comprehending various branches of science, the liberal and fine arts, agriculture, manufactures, and commerce (R. Taylor, 1823)

The Philosophical magazine : comprehending the various branches of science, the liberal and fine arts, geology, agriculture, manufactures and commerce (Richard Taylor and Co, 1800)

The Philosophical magazine : or Annals of chemistry, mathematics, astronomy, natural history and general science (Richard Taylor and Co, 1829)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1872)

The philosophy of zoology; or, A general view of the structure, functions, and classification of animals - Fleming, John, 1785 -1857 (A. Constable, 1822)

Physis : receuil d'histoire naturelle / par m. James Thomson ... - Thomson, James Livingston, 1828 -1897 (Au bureau du trésorier de la Société entomologique de France, 1860)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1977)

The pictorial museum of animated nature - Knight, Charles, 1791 -1873 (C. Cox, 1844)

The pictorial museum of animated nature - William Clowes; Sons, (George Cox, 18 King Street, Covent Garden, 1844)

The pictorial museum of animated nature ... - Knight, Charles, 1791 -1873 (C. Knight, 1844)

Die Pithecanthropus-Schichten auf Java. Geologische und paläontologische Ergebnisse der Trinil-Expedition (1907 und 1908), ausgeführt mit Unterstützung der Akademischen Jubiläumsstiftung der Stadt Berlin und der Königlich bayerischen Akademi der Wissenschaften - Königlich Bayerische Akademie der Wissenschaften (W. Engelmann, 1911)

Pitzonka's Pansy Farm, Bristol, Pennsylvania - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitzonka's Pansy Farm, 1940)

Pitzonka's Pansy Farm, "The home of the pansy" : perennials, bulbs, rock plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitzonka's Pansy Farm, 1934)

Pitzonka's Pansy Farm, "The home of the pansy" : rock plants, bulbs, perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitzonka's Pansy Farm, 1933)

Pitzonka's perennial and rock-garden plants : for 1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitzonka's Pansy Farm and Nursery, 1953)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1923)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1929)

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

Plantae Asiaticae rariores, or, Descriptions and figures of a select number of unpublished East Indian plants - Wallich, N. (Nathaniel),‏ 1786 -1854 (Treuttel and Würtz, 1830)

Plantae dicotyledoniae polypetalae - Matsumura, Jinzo, 1856 -1928 (s.n, 1900)

Plantae junghuhnianae :enumeratio plantarum, quas, in insulis Java et Sumatra - Miquel, Friedrich Anton Wilhelm 1811 -1871 (H.R. de Breuk, 1853)

Plantae preissianae sive enumeratio plantarum quas in australasia occidentali et meridionali-occidentali annis 1838-1841 collegit Ludovicus Preiss - Lehmann, Johann Georg Christian, 1792 -1860 (Sumptibus Meissneri, 1844)

Plantas Romaniae hucusque cognitas - Kanitz, Ágost, 1843 -1896 (Apud E. Demjén, 1879)

Les plantes des montagnes et des rochers, leur acclimatation et leur culture dans les jardins - Correvon, Henry 1854 -1939 (L'auteur; [etc., etc.], 1914)

Plantkundig woordenboek voor Nederlandsch Indië : met korte aanwijzingen van het geneeskundig- en huishoudelijk gebruik der planten, en vermelding der verschillende inlandsche wetenschappelijke benamingen - Filet, G. J., 1825 -1891 (J.H. de Bussy, 1888)

Plants and cuttings, bulbs, seeds, insecticides, fertilizers, supplies : general wholesale catalog, 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Roman J. Irwin, 1938)

Plants and cuttings, bulbs, seeds, insecticides, fertilizers, supplies : 1940 general wholesale catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Roman J. Irwin, 1940)

Plants and cuttings, bulbs, seeds, insecticides, fertilizers, supplies : 1939 wholesale general catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Roman J. Irwin, 1939)

Plants and cuttings, bulbs, seeds, insecticides, fertilizers, misc. : wholesale general catalog, 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Roman J. Irwin, 1937)

Plants of possible insecticidal value : a review of the literature up to 1941 - United States. Office of Experiment Stations. (U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1945)

Plants of the Punjab : a descriptive key to the flora of the Punjab, North-west Frontier Province, and Kashmir - Bamber, Charles James, 1855 - (Supt. Govt. Printing, Punjab, 1916)

Plants of the Punjab; a descriptive key to the flora of the Punjab, North-west Frontier Province and Kashmir - Bamber, Charles James, 1855 - (Printed by The Superintendent Government Printing, 1916)

Popular rock and alpine plants - Cotter, James Laurence (Blake and mackenzie, 1921)

A practical guide to garden plants, containing descriptions of the hardiest and most beautiful annuals and biennials, hardy herbaceous and bulbous perennials, hardy water and bog plants, flowering and ornamental trees and shrubs, conifers; hardy ferns; hardy bamboos and other ornamental grasses. Also the best kinds of fruits and vegetables that may be grown in the open air in the British Isles with full and practical instruction as to culture and propagation - Weathers, John, 1867 -1928 (Longmans, Green, 1901)

Précis des découvertes et travaux somiologiques de m.r C. S. Rafinesque-Schmaltz entre 1800 et 1814 ou Choix raisonné de ses principales découvertes en zoologie et en botanique, pour servir d'introduction à ses ouvrages futurs - Rafinesque, C. S. (Constantine Samuel), 1783 -1840 (Royale typographie militaire, aux dpens de l'auteur, 1814)

Premium hardy perennial plants for fall '41, wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph F. Martin Perennial Nurseries, 1941)

Die preussische expedition nach Ost-Asien : nach amtlichen quellen. V. 1, Zoologischer theil - Martens, Eduard von, 1831 -1904 (R. v. Decker, 1876)

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. (Westminster Nursery, 1933)

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

Price list : 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Evergreen Nurseries of Berlin, Penna, 1930)

Price list : 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Evergreen Nurseries of Berlin, Penn'a, 1932)

Price list and garden guide of hardy perennnials, rockery plants, roses and azalea, shrubs, trees and evergreens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ten Oaks Nursery and Gardens, 1933)

Price list of hardy perennial, rockery plants, roses, shrubs and evergreens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ten Oaks Nursery, 1932)

Proceedings and Transactions of the Croydon Microscopical & Natural History Club - Croydon Microscopical; Natural History Club. (1895)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1943)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1959)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1890)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1892)

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 Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1877)

Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1878)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1898)

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, 1906)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1914)

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

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1903)

Proceedings of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1895)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1943)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1967)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 2021)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1896)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1973)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1986)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1886)

Proceedings of the Natural History Society of Glasgow - Natural History Society of Glasgow. (Natural History Society of Glasgow, 1858)

Proceedings of the Royal Society of London - Royal Society (Great Britain) (The Society, 1871)

Proceedings of the Royal Society of Victoria - Royal Society of Victoria (Melbourne, Vic.) (The Society, 1921)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1888)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1906)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1922)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1956)

Proceedings of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the society - Zoological; Acclimatisation Society of Victoria. (F. A. Masterman, 1872)

Proceedings of the Zoological Society of London - Zoological Society of London. (Academic Press, [etc.], 1858)