The pears of New York - New York State Agricultural Experiment Station. (J. B. Lyon company, 1921)

The pears of New York - New York (State). Dept. of Agriculture. (J. B. Lyon company, 1921)

The pears of New York - New York (State). Dept. of Agriculture. (J.B. Lyon Co, 1921)

The pears of New York - New York State Agricultural Experiment Station. (Lyon, 1921)

Peep o'day : sweet corn - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Northrup, King & Co, 1904)

Pennsylvania bird life; a manual of the birds of Pennsylvania; treating especially of their food, from examinations of several thousand stomachs, made during all seasons of the year, with descriptions of the birds, their nests, eggs and habits - Warren, Benjamin Harry, 1858 -1926 (Penn'a., Pub by the author, 1892)

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

Pennsylvania farm journal - Darlington, J. L. (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 State Horticultural Association news - State Horticultural Association of Pennsylvania. (The Association, 1924)

Pennsylvania vegetable growers' news - Pennsylvania Vegetable Growers' Association. (Pennsylvania Vegetable Growers' Association, 1940)

Pennsylvania vegetable growers' news - Pennsylvania Vegetable Growers' Association. (Pennsylvania Vegetable Growers' Association, 1944)

Pennsylvania vegetable growers' news - Pennsylvania Vegetable Growers' Association. (Pennsylvania Vegetable Growers' Association, 1945)

Penny Cyclopaedia of the Society for the Diffusion of Useful Knowledge - Society for the Diffusion of Useful Knowledge (Great Britain) (Charles Knight, 1833)

Peonies, 1958-1959 : officinalis peonies, fernleaved peonies, cut flower peonies, exhibition peonies, species peonies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Atha Gardens, 1958)

Peonies and irises, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (C.F. Wassenberg Peony and Iris Farms, 1935)

Peonies and irises : Wholesale price list, fall '39 – spring '40 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wassenberg's Peony and Iris Farms, 1939)

Peonies as grown by Gilbert H. Wild & Son : wholesale list for fall 1950-spring 1951 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gilbert H. Wild & Son, 1950)

Peonies, daylilies, iris, and daffodils, as grown by Gilbert H. Wild & Son - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gilbert H. Wild & Son, 1949)

Peonies, daylilies, iris : fall 1951, spring 1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gilbert H. Wild & Son, 1951)

Peonies for October planting : and the continued story of Aunt Mary's sweet corn showing its remarkable sale and price the green corn brought in 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bonnewitz Gardens, 1936)

Peonies for pleasure - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Good & Reese Co, 1912)

Peonies, French lilacs, evergreens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bryant's Nurseries, 1941)

Peonies, hemerocallis, oriental poppies : fall 1940 - spring 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Auglaize Gardens, 1940)

Peonies, hemerocallis, oriental poppies : fall 1941 - spring 1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Auglaize Gardens, 1941)

Peonies : herbaceous officinalis species, hybrids and tree peonies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Atha Gardens, 1954)

Peonies, iris, daylilies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gilbert H. Wild & Son, 1949)

Peonies, iris, daylilies : for 1956 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gilbert H. Wild & Son, 1956)

Peonies, iris, daylilies : for 1957 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gilbert H. Wild & Son, 1957)

Peonies, iris, daylilies : for 1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gilbert H. Wild & Son, 1958)

Peonies, iris, hemerocallis - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mission Gardens, 1952)

Peonies, iris, hemerocallis : 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mission Gardens, 1950)

Peonies, own-root lilacs, mock orange, flowering almonds, plums, etc. : price list for fall 1951 and spring 1952 : 1954 price list, 18"-24" sizes sold out, stock subject to prior sale - state second choice if possible - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edw. J. Gardner Nursery, 1954)

Peonies, own-root lilacs, mock orange, flowering almonds, plums, etc. : price list for fall 1951 and spring 1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edw. J. Gardner Nursery, 1951)

Peony and iris price list : fall of 1928 and spring of 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Riverview Gardens, 1928)

Peony catalogue, 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lee R. Bonnewitz, 1938)

Peony catalogue, 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bonnewitz Peony Gardens, 1939)

Peony price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (River Drive Peony Garden, 1959)

Peony price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (River Drive Peony Garden, 1958)

Peony price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (River Drive Peony Garden, 1953)

Peony price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (River Drive Peony Garden, 1951)

Peony price list, 1954-1955 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (River Drive Peony Garden, 1954)

Peony price list, 1956-1957 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (River Drive Peony Garden, 1956)

Peony price list, fall 1939 - spring 1940 : plant Auglaize garden peonies for lifetime beauty - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Auglaize Gardens, 1939)

Peony price list, fall 1941, spring 1942 ; Irises (tall bearded) price list, fall 1941, spring 1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Northbrook Gardens, Incorporated, 1941)

Peony price list for fall of 1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herman Meyer, 1953)

The people's vade-mecum : comprising a collection of valuable receipts of general usefulness for man and beast. : Also, concise and comprehensive compilations on the subject of farriery, etc. : Entered according to act of Congress, by John Hodge, seceratry Merchant's Gargling Oil Co., in the office of the librarian of Congress at Washington - Merchant, George W. (George Washington), 1807 -1867 (Published by Merchant's Gargling Oil Co. Lockport, N.Y. M.C. Richardson & Co., printers, Lockport, N.Y, 1870)

The Percheron review - Percheron Society of America. (Percheron Society of America, 1916)

Perennial plants from all over the world, rock plants and floral novelties : fall, 1931 spring, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl Purdy, 1931)

Performance of uncoated and coated nonferrous heat exchangers in a temperate marine environment for two years - Jenkins, James F. (Civil Engineering Laboratory, 1979)

Perkins Bros. 1951 catalog : potted roses, perennials, hardy asters, phlox, annuals, chrysanthemums, gladious, superior shasta daisies, daylilies, vegetable plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perkins Bros, 1951)

Personal narrative of travels to the equinoctial regions of the New continent during the years 1799-1804 - Humboldt, Alexander von, 1769 -1859 (G. Bell, 1877)

Personal narrative of travels to the equinoctial regions of the new continent during the years 1799-1804 by Alexander de Humboldt and Aimé Bonpland : with maps, plans, &c - Humboldt, Alexander von, 1769 -1859 (Printed for Longman, Hurst, Rees, Orme, and Brown, 1822)

Personal narrative of travels to the equinoctial regions of America, during the years 1799-1804 - Humboldt, Alexander von, 1769 -1859 (G. Bell, 1907)

Personal narrative of travels to the equinoctial regions of the New Continent, during the years 1799-1804, by Alexander de Humboldt, and Aimé Bonpland - Humboldt, Alexander von, 1769 -1859 (Printed for Longman, Hurst, Rees, Orme, and Brown, 1826)

Personal narrative of travels to the equinoctial regions of the new Continent during the years 1799-1804 by Alexander de Humboldt and Aimé Bonpland : with maps, plans &c - Humboldt, Alexander von, 1769 -1859 (Printed for Longman, Hurst, Rees, Orme, and Brown, 1821)

Personal narrative of travels to the equinoctial regions of the new continent, during the years 1799-1804 by Alexander de Humboldt, and Aimé Bonpland : with maps, plans, &c - Humboldt, Alexander von, 1769 -1859 (Printed for Longman, Hurst, Rees, Orme, and Brown, 1827)

Personal narrative of travels to the equinoctial regions of America, during the year 1799-1804 - Humboldt, Alexander von, 1769 -1859 (Bohn, 1852)

Personal narrative of travels to the equinoctial regions of America during the years 1799 - 1804 - Humboldt, Alexander von, 1769 -1859 (George Routledge, 1895)

Pesticides monitoring journal - United States. Chemical Information Division. (Technical Services Division, Office of Pesticide Programs, U.S. Environmental Protection Agency, 1967)

Pesticides monitoring journal - United States. Chemical Information Division. (Technical Services Division, Office of Pesticide Programs, U.S. Environmental Protection Agency, 1981)

Pesticides monitoring journal - United States. Chemical Information Division. (Technical Services Division, Office of Pesticide Programs, U.S. Environmental Protection Agency, 1980)

Peter Henderson & Co.'s catalogue of everything for the garden : 1880 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1880)

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 manual of everything for the garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson & Co, 1883)

Peter Henderson, Stumpp & Walter : 1953 garden annual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Peter Henderson, Stumpp & Walter Co, 1953)

Peter Parley's cyclopedia of botany : including familiar descriptions of trees, shrubs and plants - Parley, Peter. (Otis, Broaders and Co, 1838)

Peyton's peerless peonies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George W. Peyton, 1937)

Peyton's peerless peonies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George W. Peyton, 1954)

Peyton's peerless peonies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George W. Peyton, 1953)

Peyton's peerless peonies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George W. Peyton, 1952)

Peyton's peerless peonies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George W. Peyton, 1951)

Peyton's peerless peonies : August 1, 1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George W. Peyton, 1949)

Peyton's peerless peonies : May 1, 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George W. Peyton, 1950)

Peyton's peerless peonies, season 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George W. Peyton, 1936)

Pharmaceutical journal and transactions - Pharmaceutical Society of Great Britain. (J. & A. Churchill, 1878)

Philadelphia Medical and Physical Journal (1804)

A philosophical and mathematical dictionary, containing an explanation of the terms, and an account of the several subjects, comprised under the heads mathemetics, astronomy, and philosophy both natural and experimental ... also memoirs of the lives and writings of the most eminent authors, both ancient and modern ... - Hutton, Charles, 1737 -1823 (Printed for the author [etc.], 1815)

The Philosophical magazine and journal : comprehending various branches of science, the liberal and fine arts, agriculture, manufactures, and commerce (R. Taylor, 1817)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1846)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1869)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1875)

The philosophy of storms - Espy, James P. (James Pollard), 1785 -1860 (C.C. Little and J. Brown, 1841)

PHS news - Pennsylvania Horticultural Society. (The Society, 1965)

PHS news - Pennsylvania Horticultural Society. (The Society, 1985)

The physiology of plants; a treatise upon the metabolism and sources of energy in plants - Pfeffer, W. (Wilhelm), 1845 -1920 (Clarendon press, 1900)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1986)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1989)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1992)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1993)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1994)

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

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1998)

Phytoneuron (Guy L. Nesom, 2010)

Phytoneuron (Guy L. Nesom, 2011)

Phytoneuron (Guy L. Nesom, 2018)

Phytoneuron (Guy L. Nesom, 2019)

The pick o' the dahlias and gladioli [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.L. Callaghan, 1926)

The pictorial gallery of English race horses : containing portraits of all the winners of the Derby, Oaks and St. Leger Stakes, during the last twenty years ; and a history of the principal operations of the turf - Cooper, Abraham, 1787 -1868 (Henry G. Bohn, 1850)