Practical botany, structural and systematic, the latter portion being an analytical key to the wild flowering plants, trees, shrubs, ordinary herbs, sedges and grasses of the northern and middle United States east of the Mississippi - Koehler, August (H. Holt and Company, 1876)

The practical fruit, flower and vegetable gardener's companion with calendar - Pardee, R. G. (Richard Gay), 1811 -1869 (C.M. Saxton and Co, 1855)

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)

Practical guide to the wild flowers and fruits - Walton, George Lincoln, 1854 -1941 (J.B. Lippincott company, 1909)

Practical guide to the wild flowers and fruits - Walton, George Lincoln, 1854 -1941 (Lippincott, 1909)

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

Der praktische landschaftsgärtner. Eine anleitung zur anlegung oder verschönerung von gärten verschiedener grösse ... Mit anweisung zu einer zweckmässigen benützung des küchengartens, zu spargel- und artischokenpflanzung, champignons-zucht, gurken- and melonentreiberei u.s.w - Hertz, Wilhelm. (Hoffmann, 1840)

A preliminary catalogue of the flora of New Jersey - Britton, Nathaniel Lord, 1859 -1934 (Office of the Survey, 1881)

Preliminary catalogue of the flora of West Virginia - Millspaugh, Charles Frederick, 1854 -1923 (1892)

A preliminary list of Maine fungi - Ricker, Percy Leroy, 1878 -1973 (1902)

Preliminary list of plants growing without cultivation in the vicinity of Manchester, New Hampshire - Batchelder, Frederick William. (Manchester institute of arts and sciences, 1909)

Preliminary list of plants of Buffalo and its vicinity - Buffalo Society of Natural Sciences. (Young, Lockwood & Co's. steam press, 1864)

A preliminary list of the plants of New Brunswick - Fowler, James, 1829 -1923 (Ellis, Robertson & Co, 1885)

A preliminary list of the vascular flora of Allegheny County, Pennsylvania - Shafer, John Adolph, 1863 -1918 (Carnegie Institute Museum?, 1901)

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 1918-1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Conyers B. Fleu, Jr, 1918)

Price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New England Nurseries, 1951)

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

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

Price list autumn of 1898 : American trees and tree seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1898)

Price list for fall 1952 : hardy ferns, wild flowers, bulbs and native orchids - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Johnson's Nurseries, 1952)

Price list for spring 1941 : native ornamental plants for pleasing landscape effect - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Blue Ridge Rhododendron Gardens, 1941)

Price list [of] american tree and shrub seeds : Autumn 1907 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1907)

Price-list of native ferns, wild flowers : 1921 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Irving Holcomb, 1921)

Price list of native ferns, wild flowers : 1924 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Irving Holcomb, 1924)

Price-list of native ferns, wild flowers : 1924[-7] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Irving Holcomb, 1927)

Price-list of native ferns, wild flowers : 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Irving Holcomb, 1928)

Price list of seeds of conifers, forest and ornamental trees, shrubs, palms, fruit trees and roots and seeds of medicinal plants No. 46 season 1927-1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Otto Katzenstein & Co, 1927)

Price list of seeds of conifers, forest and ornamental trees, shrubs, palms, fruit trees and roots and seeds of medicinal plants No. 48 season 1928-1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Otto Katzenstein & Co, 1928)

Price list of seeds of trees, shrubs and fruits - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1904)

Price list of seeds of trees, shrubs and fruits, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, Inc, 1906)

Price list of seeds of trees, shrubs and fruits, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, Inc, 1909)

Price list of seeds of trees, shrubs and fruits, etc. : Season 1907-8 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, Inc, 1908)

Price list of seeds of trees, shrubs and fruits, etc. : Season 1904-5 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, Inc, 1905)

Price list : Offer No. 53, February 15, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, inc, 1930)

Price list, spring 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bay State Nurseries, Incorporated, 1937)

Price list : spring and fall 1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New England Nurseries, 1952)

Price list : spring and summer 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (De Lhorbe Wild Flower Gardens, 1930)

Pricelist of hardy perennials and bulbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Terrell's Aquatic Nurseries, 1933)

The primeval forest types of southwestern New York - Gordon, Robert B. (Robert Benson), 1901 -1981 (University of the State of New York, 1940)

Prince catalogue - Wm. R. Prince & Co. (Wm. R. Prince & Co)

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)

Principal poisonous plants of the United States - Chesnut, V. K. (Victor King), 1867 -1938 (U.S. Dept. of Agriculture, Division of Botany, 1898)

Principia botanica: or, A concise and easy introduction to the sexual botany of Linnaeus ... Arranged in a tabular form, under each class and order; and digested alphabetically under several generic distinctions. Together with three indexes ... Also a table of several vegetable drugs not in the indexes ... - Darwin, Robert Waring, 1724 -1816 (Printed and sold by M. Hage; [etc., etc.], 1810)

Proceedings - Nova Scotian Institute of Science. (1866)

The proceedings and transactions of the Nova Scotian Institute of Science, Halifax, Nova Scotia - Nova Scotian Institute of Science. (Printed for the Institute by W. McNab, 1895)

The Proceedings and transactions of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1890)

Proceedings and transactions of the Nova Scotian Institute of Natural Science - Nova Scotian Institute of Natural Science. (Nova Scotian Institute of Natural Science, 1870)

The Proceedings and transactions of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1902)

Proceedings and transactions of the Nova Scotian Institute of Natural Science - Nova Scotian Institute of Natural Science. (Nova Scotian Institute of Natural Science, 1883)

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, 1895)

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, 1900)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1860)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1896)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1902)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1904)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1907)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1920)

Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1889)

Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1892)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1886)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1884)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1892)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1896)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1901)

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, 1922)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1930)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1935)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1923)

Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1963)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 2008)

Proceedings of the Canadian Institute - Glenny, George, 1793 -1874 (Canadian Institute, 1883)

Proceedings of the Davenport Academy of Natural Sciences - Davenport Academy of Natural Sciences. (Academy of Natural Sciences [etc.], 1901)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1998)

Proceedings of the Essex Institute - Essex Institute. (Essex Institute Press, 1856)

Proceedings of the Essex Institute - Essex Institute. (Essex Institute Press, 1860)

Proceedings of the Essex Institute - Essex Institute. (Essex Institute Press, 1864)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1895)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1897)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1905)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1904)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1908)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1887)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1915)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1921)

Proceedings of the Manchester Institute of Arts and Sciences - Manchester Institute of Arts; Sciences. (The Institute, 1900)

Proceedings of the Natural History Association of Miramichi - Natural History Association of Miramichi. (The Association, 1899)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1954)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1958)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1969)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1977)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1982)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1985)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 2012)

Proceedings of the Rochester Academy of Science - Rochester Academy of Science. (The Academy, 1894)

Proceedings of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1887)

Proceedings of the Royal Society of London Series B Containing papers of a Biological character - Royal Society (Great Britain) (Printed for the Royal Society and sold by Harrison & Sons, 1912)

Proceedings of the section of sciences - Koninklijke Akademie van Wetenschappen (Netherlands) (Johannes Müller, 1902)

Proceedings of the Staten Island Association of Arts and Sciences - Staten Island Association of Arts; Sciences. (The Association, 1907)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1883)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1885)

Procès-verbaux - Société Linnéenne de Bordeaux. (1923)

Profile characteristics of New England forest soils - Lunt, Herbert A. (Herbert Arthur), 1898 - (Connecticut Agricultural Experiment Station, 1932)

Programme du cours d'histoire naturelle médicale professé à la Faculté de médecine de Paris 3ème partie Etude spéciale des plantes employées en médecine - Baillon, H. (Henri), 1827 -1895 (F. Savy, 1878)

Propagation of wild birds; a manual of applied ornithology, treating of practical methods of propagation of quails, grouse, wild turkey, pheasants, partridges, pigeons and doves, and waterfowl, in America, and of attracting and increasing wild birds in general, including song-birds - Job, Herbert Keightley, 1864 -1933 (1915)

Proposal list : very special offerings for spring of 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1931)

A provisional host-index of the fungi of the United States - Farlow, W. G. (William Gilson), 1844 -1919 (1888)

A provisional list of the parasitic fungi of Wisconsin - Davis, John Jefferson. (1914)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 1963)

Publication. Field Columbian Museum Botanical series - Field Columbian Museum. (Field Columbian Museum, 1896)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1938)

Putney's 1954 garden book - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Putney Nursery, 1954)

Rambles on the Riviera - Strasburger, Eduard, 1844 -1912 (C. Scribner's Sons, 1906)

Range plant handbook - Dayton, William A. (William Adams), 1885 - (U. S. Govt. print. off, 1937)

Range plant handbook - Dayton, William A. (William Adams), 1885 - (U.S. Govt. print. off, 1937)

Rare alpine and perennial plant, fresh seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ralph E. Huntington, 1935)

Rare alpinines and rock plants : 1953 price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mayfair Nurseries, 1953)

Rare plants : autumn, 1929 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank W. Campbell, 1929)