Plants, seeds, and currents in the West Indies and Azores; the results of investigations carried out in those regions between 1906 and 1914 - Guppy, H. B. (Henry Brougham), 1854 -1926 (Williams and Norgate, 1917)

The Pliocene deposits of Britain - Reid, Clement, 1853 -1916 (Printed for HMSO by Eyre and Spottiswoode, 1890)

The Pliocene floras of the Dutch-Prussian border - Reid, Clement, 1853 -1916 (M. Nijhoff, 1915)

Poisonous, noxious, and suspected plants, of our fields and woods - Pratt, Anne, 1806 -1893 (Society for Promoting Christian Knowledge, 1866)

Poisonous plants in field and garden - Henslow, George, 1835 -1925 (Society for Promoting Christian Knowledge, 1901)

Poisonous plants of all countries - Bernhard-Smith, Arthur. (Baillière, Tindall & Cox, 1923)

Poisonous plants of all countries. With the active, chemical principles which they contain; and the toxic symptoms produced by each group - Bernhard-Smith, Arthur. (J. Wright, 1905)

Poisonous plants of Canada - Mulligan, Gerald A., 1928 - (Agriculture Canada, 1990)

Poisonous plants of the Midwest - University of Illinois at Urbana-Champaign. Dept. of Landscape Architecture. (Dept. of Landscape Architecture, University of Illinois, 1983)

Poisonous plants of the world - Moldenke, Harold N. (Harold Norman), 1909 -1996 (1951)

Poisons; their effects and detection - Blyth, Meredith Wynter. (C. Griffin & company, limited, 1920)

Pollen - Edgeworth, Michael Pakenham, 1812 -1881 (Hardwicke & Bogue, 1877)

Pomona Nurseries [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (T.E. Steele, 1910)

Pomona Nurseries [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (T.E. Steele, 1912)

Popular botany; the living plant from seed to fruit - Step, Edward, 1855 -1931 (H. Holt and company, 1913)

Popular field botany; containing a familiar and technical description of the plants most common to the various localities of the British Isles, adapted to the study of either the artificial or natural systems - Catlow, Agnes, 1807? -1889 (Reeve, Benham, and Reeve, 1848)

Popular field botany; containing a familiar and technical description of the plants most common to the various localities of the British Isles, adapted to the study of either the artificial or natural systems - Catlow, Agnes, 1807? -1889 (Reeve, Benham & Reeve, 1849)

Popular names of flowers, fruits, &c., as used in the county of Somerset and the adjacent parts of Devon, Dorset and Wilts - Macmillan, Alexander Stuart. (Western Gazette, 1922)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1887)

Popular Science Review (1865)

Populäre Botanik oder gemeinfassliche Anleitung zum Studium der Pflanze und des Pflanzenreiches. Zugleich ein Handbuch zum Bestimmen der Pflanzen auf Excursionen - Schmidlin, Eduard, 1808? -1890 (Krais & Hoffmann, 1857)

Populäre Naturgeschichte der drei Reiche - Jussieu, Adrien de, 1797 -1853 (Verlag von Scheible, Rieger & Sattler, 1845)

Port Stockton Nursery, Stockton, California - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Port Stockton Nursery, 1940)

[Portland Wholesale Nursery Company price lists, December 7, 1932] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Wholesale Nursery Co, 1932)

Postelsia : the year book of the Minnesota Seaside Station - Minnesota Seaside Station. (Pioneer Press, 1906)

Potted plants ready for shipment about September 15th - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Chase Nursery Company, 1935)

Pozsonyi Orvos-Termeszettudomanyi Egyesulet Kozlemenyei - Verein für natur- und heilkunde, Pressburg (1901)

Practical botany - Cavers, F. (Francis), 1876 -1936 (W.B. Clive, University Tutorial Press Ld, 1911)

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)

Practical forestry. A treatise on the propagation, planting, and cultivation, with a description, and the botanical and popular names of all the indigenous trees of the United States - Fuller, Andrew S. (Andrew Samuel), 1828 -1896 (Orange Judd company, 1884)

Practical forestry. A treatise on the propagation, planting and cultivation, with a description, and the botanical and popular names of all the indigenous trees of the United States - Fuller, Andrew S. (Andrew Samuel), 1828 -1896 (Orange Judd Co, 1884)

Practical foresty; a popular handbook on the rearing and growth of trees for profit or ornament - Webster, A. D. (Angus Duncan), 1855 -1931 (W. Rider, 1917)

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)

A practical handbook of trees, shrubs, vines and herbaceous perennials - Kirkegaard, John (The Bullard company, 1912)

A practical handbook of trees, shrubs, vines and herbaceous perennials. Hardy and ornamental varieties, their characteristics, uses and treatment - Kirkegaard, John (Williams Bookstores Co, 1916)

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

Practical landscape gardening : the importance of careful planning, locating the house, arrangement of walks and drives, construction of walks and drives, lawns and terraces, how to plant a property, laying out a flower garden, architectural features of the garden, rose gardens and hardy borders, wild gardens and rock gardens, planting plans and planting lists - Cridland, Robert B. (A.T. De La Mare Company, inc, 1916)

Practical landscape gardening; the importance of careful planning, locating the house, arrangement of walks and drives, construction of walks and drives, lawns and terraces, how to plant a property, laying out a flower garden, architectural features of the garden, rose gardens and hardy borders, wild gardens and rock gardens, planting plans and planting lists - Cridland, Robert B. (A.T. De La Mare Company, inc, 1918)

Practical plant physiology : an introduction to original research for students and teachers of natural science, medicine, agriculture and forestry - Detmer, W. (Wilhelm), 1850 -1930 (Swan Sonnenschein, 1898)

Practical plant physiology : an introduction to original research for students and teachers of natural science, medicine, agriculture and forestry - Detmer, W. (Wilhelm), 1850 -1930 (S. Sonnenschein, 1898)

The practical shepherd: a complete treatise on the breeding, management and diseases of sheep - Randall, Henry Stephens, 1811 -1876 (D. D. T. Moore, 1863)

A practical treatise on the use of the microscope, including the different methods of preparing and examining animal, vegetable, and mineral structures - Quekett, John, 1815 -1861 (H. Bailliere; [etc., etc.], 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)

Pre-historic times - Lubbock, John, Sir, 1834 -1913 (Williams and Norgate, 1865)

Le préhistorique antiquité de l'homme - Mortillet, Gabriel de, 1821 -1898 (C. Reinwald, 1883)

Precis Analytique des Travaux de l'Academie des Sciences, Belles-Lettres et Arts de Rouen - Académie des sciences, belles lettres & arts de Rouen (1850)

Prehistoric Europe : a geological sketch - Darwin, Charles, 1809 -1882 (Edward Stanford, 1881)

Prehistoric Europe, a geological sketch - Geikie, James, 1839 -1915 (E. Stanford, 1881)

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

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

Price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Claremont Nurseries, 1914)

Price list - California Nursery Co. (The Nursery, 1910)

Price list. Spring 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Educational Supply Co, 1916)

Price list. Fall 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Educational Supply Co, 1916)

Price list. Spring 1917 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Educational Supply Co, 1917)

Price list - California Nursery Co. (The Nursery, 1911)

Price list - California Nursery Co. (The Nursery, 1912)

Price list - Elm City Nursery Co. (Elm City Nursery Co, 1903)

Price list - California Nursery Co. (The Nursery, 1913)

Price list - Elm City Nursery Co. (Elm City Nursery Co, 1904)

Price list - Elm City Nursery Co. (Elm City Nursery Co, 1905)

Price list - Elm City Nursery Co. (Elm City Nursery Co, 1906)

Price list - California Nursery Co. (The Nursery, 1915)

Price list - California Nursery Co. (The Nursery, 1916)

Price list - California Nursery Co. (The Nursery, 1917)

Price list - Elm City Nursery Co. (Elm City Nursery Co, 1909)

Price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, inc, 1930)

Price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (MacRorie-McLaren Company, 1924)

Price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Yule Tree Farm, 1951)

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

Price list 1908-1909 : fruit and ornamental trees evergreens, palms, shrubs, roses etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1908)

Price list 1909-1910 : fruit and ornamental trees evergreens, palms, shrubs, roses etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1909)

Price list : 1911-1912 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1910)

Price list : 1911-1912 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1911)

Price list : 1915-1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1915)

Price list : 1916-1917 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1916)

Price list : 1917-1918 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1917)

Price list : 1917-1918 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cottage Gardens Nurseries (Incorporated), 1917)

Price list : 1929 : fruit trees, grape and berry vines, ornamental trees and shrubs, roses, palms and tropical plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pioneer Nursery of Monrovia, 1929)

Price list, 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Roland E. Baker, 1934)

Price list, 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Princeton Nurseries, 1934)

Price list, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Living Tree Guild, 1935)

Price list, 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Outpost Nurseries, 1938)

Price list : 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Swan River Nursery, 1940)

Price list 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.H. Schmidt & Son, Incorporated, 1941)

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

Price list ... 1949-1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tankard Nurseries, 1949)

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

Price list, 1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bagatelle Nursery, 1952)

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

Price list : autumn 1947 - Harrison's Nurseries (Berlin, Md.) (Harrisons', 1947)

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

Price list : fall 1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Educational Supply Co, 1915)

Price list : fall, 1915-spring, 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry S. Dawson, 1915)

Price list : Fall, 1920-Spring, 1921 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hiti Nurseries, 1920)

Price list : Fall, 1921-Spring, 1922 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hiti Nurseries, 1921)

Price list : Fall, 1922 and Spring, 1923 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ellery Baker, 1922)

Price list : fall, 1924 and spring, 1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hiti Nurseries, 1924)

Price list : fall, 1928 and spring, 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hiti Nurseries, 1928)

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

Price list : fall, 1929 and spring, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hiti Nurseries, 1929)

Price list, Fall 1929 : trees, shrubs, evergreens, vines, roses, herbaceous perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry Kohankie & Son, 1929)

Price list : fall, 1930 and spring, 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (James H. Bowditch, 1930)

Price list : fall, 1931 and spring, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (James H. Bowditch, 1931)

Price list, fall 1931 : trees, shrubs, evergreens, vines, roses, herbaceous perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry Kohankie & Son, 1931)

Price list, fall 1932-spring 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Eastern Shore Nurseries, Inc, 1932)

Price list, fall 1932 - spring 1933 : trees, shrubs, evergreens, vines, roses, herbaceous perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry Kohankie & Son, 1932)

Price list, fall 1933-spring 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Eastern Shore Nurseries, Inc, 1933)

Price list, fall 1933 - spring 1934 : trees, shrubs, evergreens, vines, roses, herbaceous perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry Kohankie & Son, 1933)

Price list, fall 1934-spring 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Eastern Shore Nurseries, Inc, 1934)

Price list, fall 1934 - spring 1935 : trees, shrubs, evergreens, vines, roses, herbaceous perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry Kohankie & Son, 1934)

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

Price list, fall 1935 spring 1936 : trees, shrubs, evergreens, vines, roses, herbaceous perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry Kohankie & Son, 1935)

Price list, fall 1936-spring 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Eastern Shore Nurseries, Inc, 1936)

Price list, fall 1936 spring 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Howell Nurseries, 1936)

Price list, fall 1936 spring 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mecklenburg Nurseries, Inc, 1936)

Price list, fall 1936 spring 1937 : trees, shrubs, evergreens, vines, roses, herbaceous perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry Kohankie & Son, 1936)

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

Price list, fall 1937, spring 1938 : trees, shrubs, evergreens, vines, roses, herbaceous perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry Kohankie & Son, 1937)

Price list, fall 1938, spring 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry Kohankie & Son, 1938)