Park and cemetery - Haight, R. J. (Rufus J.) (R.J. Haight, 1899)

Park and cemetery and landscape gardening - Haight, R. J. (Rufus J.) (R.J. Haight, 1904)

Park and cemetery and landscape gardening - Haight, R. J. (Rufus J.) (R.J. Haight, 1906)

Park and cemetery and landscape gardening - Haight, R. J. (Rufus J.) (R.J. Haight, 1907)

Park and cemetery and landscape gardening - Haight, R. J. (Rufus J.) (R.J. Haight, 1911)

Park and cemetery and landscape gardening - Haight, R. J. (Rufus J.) (R.J. Haight, 1916)

Park's floral guide - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1909)

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 1911 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1911)

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

Park's floral guide for 1917 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1917)

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

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 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1930)

Park's illustrated flower book of choice dependable seeds : season of 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Company, 1935)

Park's illustrated flower book of choice dependable seeds, season of 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1933)

Park's illustrated flower book of choice dependable seeds, season of 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Company, 1937)

Park's illustrated flower book of choice dependable seeds, season of 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Company, 1936)

Park's illustrated flower book of choice dependable seeds, season of 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1934)

The parks and gardens of Paris, considered in relation to the wants of other cities and of the public and private gardens; being notes on a study of Paris gardens - Robinson, W. (William), 1838 -1935 (Macmillan and co, 1878)

The parks, promenades, & gardens of Paris, described and considered in relation to the wants of our own cities, and the public and private gardens - Robinson, W. (William), 1838 -1935 (J. Murray, 1869)

The parks, promenades & gardens of Paris : described and considered in relation to the wants of our own cities and of public and private gardens - Robinson, W. (William), 1838 -1935 (John Murray, 1869)

Parrys' Pomona Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Parrys' Pomona Nurseries, 1900)

Patterson's numbered check-list of North American plants north of Mexico - Patterson, Harry N. (Harry Norton), 1853 -1919 (Patterson, 1892)

Paxton's flower garden - Lindley, John, 1799 -1865 (1853)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1843)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1844)

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

Pennsylvania farm journal - Darlington, J. L. (A.M. Spangler, 1851)

The Pennsylvania farm journal (A.M. Spangler, 1851)

Pennsylvania farm journal - Darlington, J. L. (A.M. Spangler, 1852)

Pennsylvania farm journal - Darlington, J. L. (A.M. Spangler, 1853)

Pennsylvania farm journal - Darlington, J. L. (A.M. Spangler, 1854)

Perennials : deciduous trees, flowering shrubs, evergreens, hardy vines, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Muller-Sealey Co., Inc, 1924)

Periodical catalogue of fruit and ornamental trees and plants : 1845 & 1846 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Joseph H. Jennings, Printer, 1845)

Periodical catalogue of fruit and ornamental trees and plants, cultivated at the Highland Nurseries, Newburgh, near New York - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (A. Saul & Co)

Periodical catalogue of fruit and ornamental trees and plants, cultivated at the Highland Nurseries, Newburgh, near New York - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (A. Saul & Co, 1848)

Peter Henderson & Co's tested seeds : dealers' wholesale catalogue, for season 1894 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1894)

Peter Henderson & Co.s manual of everything for the garden : 1890 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1890)

Peter's perennial and other plants : with which to create anew the old-time hardy gardens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter's Nursery Company, 1909)

Peter's plants : with which to create anew the old-time hardy gardens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter's Nursery Company, 1908)

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

Die Pflanzenstoffe, botanisch-systematisch bearbeitet ; chemische Bestandteile und Zusammensetzung der einzelnen Pflanzenarten, Rohstoffe und Produkte. Phanerogamen - Wehmer, C. (Carl), 1858 -1935 (G. Fischer, 1911)

Die Pflanzenwelt Dalmatiens - Adamović, Lujo (Lujo V.), 1869 -1935 (W. Klinkhardt, 1911)

Die Pflanzenwelt Norwegens. Ein Beitrag zur Natur- und Culturgeschichte Nord-Europas - Schübeler, F. C. (Frederik Christian), 1815 -1892 (A.W. Brögger, 1873)

Die Pflanzenwelt Norwegens : ein Beitrag zur Natur- und Culturgeschichte Nord-Europas - Schübeler, F. C. (Frederik Christian), 1815 -1892 (1873)

Pharmaceutical botany - Youngken, Heber W. (Heber Wilkinson), 1885 -1963 (P. Blakiston's Son & Co, 1918)

Pharmaceutical botany; a text-book for students of pharmacy and science - Youngken, Heber W. (Heber Wilkinson), 1885 -1963 (P. Blakiston's son & co, 1920)

Pharmaceutical botany, with glossary of botanical terms - Youngken, Heber W. (Heber Wilkinson), 1885 -1963 (Blakiston, 1921)

Pharmaceutical journal and transactions - Pharmaceutical Society of Great Britain. (J. & A. Churchill, 1875)

Philadelphia flower show - Pennsylvania Horticultural Society. (The Society, 1984)

Philadelphia flower show - Pennsylvania Horticultural Society. (The Society, 1997)

The Phoenix Nursery Co. [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Phoenix Nursery Co, 1912)

The Phoenix Nursery Company Catalogue no. 3, 1913 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bloomington Phoenix Nursery, 1913)

The Phoenix Nursery Company Catalog no. 3 : [spring 1910] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bloomington Phoenix Nursery, 1910)

The Phoenix Nursery Company [catalogue] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Phoenix Nursery Company, 1911)

Physiological plant anatomy - Haberlandt, Gottlieb, 1854 -1945 (Macmillan and Co, 1914)

Physiologische Chemie - Hoppe-Seyler, Felix, 1825 -1895 (A. Hirschwald, 1877)

Physiologische Pflanzenanatomie - Haberlandt, Gottlieb, 1854 -1945 (W. Engelmann, 1904)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1974)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1982)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1991)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1997)

Phytoneuron (Guy L. Nesom, 2011)

Le piante vascolari raccolte dal Rev. P.C. Silvestri nell'Hu-peh, durante gli anni 1904-1907 (e negli anni 1909, 1910) - Silvestri, Cipriano. (Pellas, 1911)

The pinetum: being a synopsis of all the coniferous plants at present known, with descriptins, history and synonyms, and a comprehensive systematic index - Gordon, George, 1806 -1879 (H. G. Bohn, 1875)

The pinetum: being a synopsis of all the coniferous plants at present known, with descriptions, history and synonyms, and a comprehensive systematic index - Gordon, George, 1806 -1879 (H.G. Bohn [etc.], 1880)

P.J. Berckmans Co. : 1904 1905 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fruitland Nurseries, 1904)

P.J. Berckmans Co. : 1905 1906 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fruitland Nurseries, 1903)

P.J. Berckmans Co. Incorporated - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fruitland Nurseries, 1907)

P.J. Berckmans Co., Incorporated [catalog] 1906-1907 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fruitland Nurseries, 1906)

Plant culture; a working hand-book of every day practice for all who grow flowering and ornamental plants in the garden and greenhouse - Oliver, George W. (George Watson), 1858 -1923 (A. T. De La Mare Printing and Publishing Co., Ltd, 1909)

Plant culture; a working handbook of every day practice for all who grow flowering and ornamental plants in the garden and greenhouse - Hottes, Alfred Carl, 1891 -1955 (A. T. De La Mare Co., Inc, 1921)

Plant culture; a working handbook of every day practice for all who grow flowering and ornamental plants in the garden and greenhouse - Oliver, George W. (George Watson), 1858 -1923 (A. T. De La Mare Printing and Publishing Co, 1900)

Plant culture; a working hand-book of every day practice for all who grow flowering and ornamental plants in the garden and greenhouse - Oliver, George W. (George Watson), 1858 -1923 (A. T. De La Mare Printing and Publishing Co, 1912)

Plant culture; a working handbook of every day practice for all who grow flowering and ornamental plants in the garden and greenhouse - Hottes, Alfred Carl, 1891 -1955 (A. T. De La Mare co., inc, 1921)

Plant disease Fungi - Stevens, Frank Lincoln, 1871 -1934 (The Macmillan company, 1925)

Plant explorations : ornamentals in Italy, southern France, Spain, Portugal, England, and Scotland - Meyer, Frederick G. 1917 -2006 (U. S. Dept. of Agriculture in cooperation with Longwood Gardens of the Longwood Founcation, 1959)

Plant immigrants - United States. Office of Foreign Seed; Plant Introduction. (Office of Foreign Seed and Plant Introduction, 1914)

Plant immigrants - United States. Office of Foreign Seed; Plant Introduction. (Office of Foreign Seed and Plant Introduction, 1916)

Plant introductions - United States. Office of Foreign Plant Introduction. (Office of Foreign Seed and Plant Introduction, Bureau of Plant Industry, U.S. Dept. of Agriculture, 1924)

Plant introductions - United States. Office of Foreign Plant Introduction. (Office of Foreign Seed and Plant Introduction, Bureau of Plant Industry, U.S. Dept. of Agriculture, 1940)

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)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1966)

Plant life of Alabama : an account of the distribution, modes of association, and adaptations of the flora of Alabama, together with a systematic catalogue of the plants growing in the state - Mohr, Charles (Charles Theodore), 1824 -1901 (Brown Printing Co, 1901)

Plant life of Alabama, an account of the distribution, modes of association, and adaptations of the flora of Alabama, together with a systematic catalogue of the plants growing in the state - Mohr, Charles (Charles Theodore), 1824 -1901 (Brown printing co, 1901)

Plant life of Alabama. An account of the distribution, modes of association, and adaptations of the flora of Alabama, together with a systematic catalogue of the plants growing in the state. Prepared in cooperationwith the Geological Survey of Alabama - Mohr, Charles (Charles Theodore), 1824 -1901 (Govt. Print. Off, 1901)

The plant life of Maryland - Shreve, Forrest, 1878 -1950 (Johns Hopkins Press, 1910)

Plant life through the ages : a geological and botanical retrospect - Seward, A. C. (Albert Charles), 1863 -1941 (Hafner, 1933)