Park's floral guide : 1904 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1904)

Park's floral guide : 1906 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1906)

Park's floral guide : 1914 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1914)

Park's floral guide for 1898 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1898)

Park's floral guide for 1899 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1899)

Park's floral guide for 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1908)

Park's floral guide for 1913 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1913)

Park's illustrated flower book of choice dependable seeds : season of 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1930)

Park's illustrated flower book of choice dependable seeds : season of 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1929)

Park's illustrated flower book of choice dependable seeds : season of 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1932)

Parkbäume und ziersträucher - Feucht, Otto (Strecker & Schröder, 1910)

The parlor gardener: a treatise on the house culture of ornamental plants. Translated from the French, and adapted to American use - Randolph, Cornelia J. (Lee and Shepard, 1884)

The parlor gardener: a treatise on the house culture of ornamental plants - Randolph, Cornelia J. (J.E. Tilton & company, 1861)

Partial stock list of everything pertaining to horticulture for 1907 : now in stock at the Universal Horticultural Establishment - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.A. Manda, 1907)

Partial stock list of everything pertaining to horticulture for 1905 now in stock at the Universal Horticultural Establishment - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.A. Manda, 1905)

Paxton's Botanical dictionary; comprising the names, history, and culture of all plants known in Britain; with a full explanation of technical terms. New ed. including all the new plants up to the present year - Paxton, Joseph, Sir, 1803 -1865 (Bradbury, Evans, & co, 1868)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1837)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1849)

Payne's garden guide, 1927 : seeds, plants and trees - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Theodore Payne, 1927)

Payne's garden guide [of] seeds, plants & trees : 1922 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Theodore Payne, 1922)

Payne's garden guide [of] seeds, plants and trees - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Theodore Payne, 1918)

Payne's garden guide [of] seeds, plants and trees : 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Theodore Payne, 1919)

Payne's garden guide [of] seeds, plants and trees : 1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Theodore Payne, 1925)

Payne's garden guide : seeds, plants & trees - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Theodore Payne, 1920)

Payne's garden guide : seeds, plants & trees - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Theodore Payne, 1921)

Payne's garden guide seeds, plants & trees : 1923 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Theodore Payne, 1923)

Payne's garden guide : seeds, plants and trees - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Theodore Payne, 1924)

Payne's garden guide : seeds, plants and trees : 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Theodore Payne, 1928)

Payne's garden guide : seeds, plants and trees, 1930 : an informative catalog of flower, vegetable, tree and shrub seeds, roses and flowering plants, vines, ornamental and fruiting shrubs and trees, including an extensive listing of California native trees, shrubs and wild flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Theodore Payne, 1930)

Pennsylvania trees - Illick, Joseph S. (Joseph Simon), 1884 -1967 (W.S. Ray, State Printer, 1914)

Pennsylvania trees - Illick, Joseph S. (Joseph Simon), 1884 -1967 (W. S. Ray, State Printer, 1915)

Perfection seeds, bulbs, plants and garden requisites for 1921 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (William M. Hunt & Company, 1921)

Perfection seeds, bulbs, plants and garden requisites for 1922 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (William M. Hunt & Co., Inc, 1922)

Perfection seeds, bulbs, plants for 1920 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (William M. Hunt and Co, 1920)

Die periodischen Bewegungen der Blattorgane - Pfeffer, W. (Wilhelm), 1845 -1920 (Verlag von W. Engelmann, 1875)

The Perry Seed Store Catalogue : ulbs, hardware, implements, drain tile, tin shop &c - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Perry Seed Store, 1895)

The Perry Seed Store : seeds, bulbs, hardware, implements, drain tile, tin shop - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.H. Ebeling, 1898)

The Perry Seed Store twenty sixth annual catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Perry Seed Store, 1896)

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

Peter Henderson & Co.'s 1898 autumn wholesale catalogue for florists and market gardeners - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1898)

Peter Henderson & Co.'s August to December 1900 wholesale catalogue of bulbs, plants and seeds, tools, fertilizers, insecticides, and requisites for the greenhouse, garden and farm - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1900)

Peter Henderson & Co.'s August to December 1901 wholesale catalogue of bulbs, plants and seeds, tools, fertilizers, insecticides, and requisites for the greenhouse, garden and farm - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1901)

Peter Henderson & Co.'s catalogue of everything for the garden : 1877 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1877)

Peter Henderson & Co.'s combined wholesale list from April 1st to May 15th, 1882. : for florists embracing plants, flower seeds and bulbs. : for market gardeners embracing vegetable seeds, plants and implements - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1882)

Peter Henderson & Co.'s combined wholesale list from February 15th to April 1st, 1882. : for florists embracing plants, flower seeds and bulbs. : for market gardeners embracing vegetable seeds, plants and implements - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1882)

Peter Henderson & Co.'s combined wholesale list from July 1st to August 15th, 1882. : for florists embracing plants, flower seeds and requisites. : for market gardeners embracing vegetable seeds, plants and implements - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1882)

Peter Henderson & Co.'s combined wholesale list from May 15th to July 1st, 1882. : for florists embracing plants, flower seeds and bulbs. : for market gardeners embracing vegetable seeds, plants and implements - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1882)

Peter Henderson & Co.'s combined wholesale list of plants, seeds, bulbs and requisites for florists and market gardeners - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1882)

Peter Henderson & Co.'s quarterly trade list of plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1891)

Peter Henderson & Co.'s quarterly wholesale catalogue for florists. : plants, flower seeds, tools, summer flowering bulbs, insecticides and fertilizers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1892)

Peter Henderson & Co.'s quarterly wholesale catalogue for florists. : plants, flower seeds, summer flowering bulbs insecticides, etc. : for tools see previous issue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1891)

Peter Henderson & Co's seed catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1872)

Peter Henderson & Co's seed catalogue : 1875 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1875)

Peter Henderson & Co.'s spring 1899 florists' and market gardeners' wholesale catalogue of plants, flower seeds, bulbs, vegetable seeds, farm seeds, fertilizers, insecticides, tools. etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1899)

Peter Henderson & Co's tested seeds : general wholesale catalogue to dealers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1895)

Peter Henderson & Co's tested seeds : general wholesale catalogue to dealers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1896)

Peter Henderson & Co's tested seeds : general wholesale catalogue to dealers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1897)

Peter Henderson & Co's tested seeds : wholesale catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1897)

Peter Henderson & Co.'s wholesale catalogue for florists and market gardeners : plants, flower seeds, bulbs, vegetable seeds, farm seeds, fertilizers, insecticides, tools. etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1898)

Peter Henderson & Co.'s wholesale catalogue of bulbs, plants and seeds, also books, tools, fertilizers, insecticides and requisities - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1902)

Peter Henderson & Co.'s wholesale catalogue of bulbs, plants and flower seeds for autumn planting : 1896 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1896)

Peter Henderson & Co.'s wholesale catalogue of bulbs, plants and flower seeds, for autumn planting : 1897 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1897)

Peter Henderson & Co.'s wholesale catalogue of seeds, plants and bulbs, implements, tools, fertilizers, insecticides, books, requisites, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1904)

Peter Henderson & Co.'s wholesale catalogue of seeds, plants and bulbs, also tools, fertilizers, insecticides, books and requisites - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1903)

Peter Henderson & Co.'s wholesale list of seeds for 1884 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1884)

Peter Henderson & Co.'s wholesale price list of bulbs, plants, flower seeds, and requisites for florists - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1884)

Peter Henderson & Co.'s wholesale price list of plants, flower seeds and requisites for florists - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1884)

Pflanzen-geographie auf physiologischer Grundlage - Schimper, A. F. W. (Andreas Franz Wilhelm), 1856 -1901 (Gustav Fischer, 1908)

Die Pflanzen- und Thierwelt von Deli auf der Ostküste Sumatras : naturwissenschaftliche Skizzen und Beitrage - Hagen, B. (Bernhard), 1853 -1919 (E.J. Brill, 1890)

Die Pflanzendecke der Erde : populäre Darstellung der Pflanzengeographie für gebildete Naturfreunde - Rudolph, Ludwig, 1813 -1896 (Nicolaische Verlagsbuchhandlung, 1859)

Pflanzenmikrochemie : ein Hilfsbuch beim mikrochemischen Studium pflanzlicher Objekte - Tunmann, Otto, 1867 -1919 (Gebrüder Borntraeger, 1913)

Pflanzenphysiologie als Theorie der Gärtnerei. Für Botaniker, Gärtner, Landwirte, Forstleute und Pflanzenfreunde - Molisch, Hans, 1856 -1937 (G. Fischer, 1922)

Pflanzenphysiologie; ein Handbuch der Lehre vom Stoffwechsels und Kraftwechsels in der Pflanze - Pfeffer, W. (Wilhelm), 1845 -1920 (W. Engelmann, 1897)