Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1988)

Plants as a guide to mineralization - Carlisle, Donald. (1958)

Plants from the Swauk - Sharples, Stephen Paschall, 1842 -1923 (1913)

Plants of Iowa; a preliminary list of the native and introduced plants of the state, not under cultivation - Greene, Wesley. (Bishard brothers, printers, 1907)

Plants of James' Bay collected by David Potter - Potter, David, 1894 -1967 (1929)

The plants of Michigan; simple keys for the identification of the native seed plants of the state - Gleason, Henry A. (Henry Allan), 1882 -1975 (G. Wahr, 1918)

Plants of Mississippi : a list of flowering plants and ferns - Lowe, E. N. (Ephraim Noble), 1864 -1933 (Mississippi State Geological Survey, 1921)

Plants of Monroe County, New York, and adjacent territory - Beckwith, Florence. (1896)

The plants of Prince Edward Island - Erskine, D. S. (David Sterling) (Plant Research Institute, Research Branch, Canada Dept. of Agriculture, 1960)

Plants of Riding Mountain National Park, Manitoba - Canadian Parks Service. (Research Branch, Agriculture Canada, 1988)

Plants of the Punjab : a descriptive key to the flora of the Punjab, North-west Frontier Province, and Kashmir - Bamber, Charles James, 1855 - (Supt. Govt. Printing, Punjab, 1916)

Plants of the Punjab; a descriptive key to the flora of the Punjab, North-west Frontier Province and Kashmir - Bamber, Charles James, 1855 - (Printed by The Superintendent Government Printing, 1916)

Plants of the Seven Devils Mountains of Idaho : an annotated checklist - Intermountain Forest; Range Experiment Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1987)

Plants of Yellowstone National Park - McDougall, W. B. (Walter Byron), 1883 - (U.S. Govt. Print. Off, 1936)

Plants, their natural growth and ornamental treatment - Hulme, F. Edward (Frederick Edward), 1841 -1909 (Marcus Ward & Co, 1874)

The Plough, the loom, and the anvil (J.S. Skinner & Son], 1848)

Popular economic botany; or, Description of the botanical and commercial characters of the principal articles of vetegable origin, used for food, clothing, tanning, dyeing, building, medicine, perfumery, etc - Archer, Thomas Croxen, 1817 -1885 (Reeve and co, 1853)

The popular encyclopedia; being a general dictionary of arts, sciences, literature, biography, history, and political economy, reprinted from the American edition of the "Conversations lexicon" ... with dissertations on the rise and progress of literature (Blackie, 1900)

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)

A popular flora of Denver, Colorado - Eastwood, Alice, 1859 -1953 (Zoe Publishing Company, 1893)

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, 1880)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1899)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1872)

Popular Science Review (1862)

Popular Science Review (1864)

Popular Science Review (1867)

Popular Science Review (1881)

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 Encyclopädie der praktischen Landwirthschaft; ein belehrendes Taschenbuch für Güterbesitzer, Wirthschaftsbeamte und Landwirthe. 3. nach dem gegenwärtigen Stande der Naturwissenschaften verb. und mit Zusätzen bereicherte Aufl. Hrsg. von Fernand Stamm - Leibitzer, Johann (G. Heckenast, 1854)

Populäres handbuch des grasbaus, futterpflanzenbaus und der milchwirthschaft - Hoffman, Francis Arnold 1822 -1903 (Wis., G. Brumder, 1883)

Population status and ecology of trembling aspen and black cottonwood communities on the Blackfeet Indian Reservation - U.S. Fish; Wildlife Service (Montana Natural Heritage Program, 1997)

Porter-Walton : [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Porter-Walton Co, 1917)

Porter-Walton Company : [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Porter-Walton Co, 1918)

Porter-Walton Company : [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Porter-Walton Co, 1919)

Portland Seed Co's catalogue : garden tools, spray pumps, seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Seed Co, 1895)

Portland Seed Company's catalog and seed annual for 1922 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Seed Co, 1922)

Portland Seed Company's Catalog and seed annual for 1924 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Seed Co, 1924)

Portland Seed Company's Catalog and seed annual for 1925 - G.E. Conkey Company. (Portland Seed Co, 1925)

Portland Seed Company's Catalog and seed annual for 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Seed Company, 1926)

Portland Seed Company's complete catalog and seed annual for 1921 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Seed Co, 1921)

Potato leaf roll and its insect vectors in the Edmonton District - University of Alberta. Dept. of Entomology. ([University of Alberta], 1945)

The potential and current vegetation of the Sun River Game Range - Montana. Department of Fish, Wildlife,; Parks (Montana Dept. of Fish, Wildlife and Parks, 1980)

The potentialities of revegetating and utilizing agronomic species on strip mined areas in Illinois - University of Illinois at Urbana-Champaign. Agricultural Experiment Station. (University of Illinois, Agricultural Experiment Station, 1947)

The power of movement in plants - Darwin, Charles, 1809 -1882 (D. Appleton and company, 1900)

The power of movement in plants - Darwin, Charles, 1809 -1882 (D. Appleton and Company, 1896)

The power of movement in plants - Darwin, Charles, 1809 -1882 (D. Appleton, 1895)

The power of movement in plants - Darwin, Charles, 1809 -1882 (D. Appleton, 1897)

The power of movement in plants - Darwin, Charles, 1809 -1882 (Appleton, 1907)

The power of movement in plants - Darwin, Charles, 1809 -1882 (John Murray, 1880)

The power of movement in plants - Darwin, Charles, 1809 -1882 (Appleton, 1881)

The power of movement in plants - Darwin, Charles, 1809 -1882 (D. Appleton, 1898)

PPQ foreign-site technical packet for New Zealand - United States. Animal; Plant Health Inspection Service. Plant Protection; Quarantine Programs. (PPQ, APHIS, USDA,], 1985)

Practical agriculture : or, A complete system of modern husbandry; with the methods of planting, and the management of live stock - Dickson, R. W. (R. Phillips, 1807)

The practical bee-keeper ; or, Concise and plain instructions for the management of bees and hives - Milton, John, apiarian. (J. Milton, 1851)

Practical directions for laying down or improving meadow and pasture land : with an enumeration of the British grasses, pointing out such seeds as are of the most nutritious property, and best adapted for dairy pasture, hay, green food, or feeding and fattening stock : with full instructions for sowing, and the best seasons for performing it - Curtis, William, 1746 -1799 (Sherwood, Gilbert, and Piper, 1834)

The practical fruit, flower and vegetable gardener's companion, with a calendar - Emerson, G. (Gouverneur), 1796 -1874 (C. M. Saxton & co, 1855)

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

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

The practical gardener, and modern horticulturist - McIntosh, Charles, 1794 -1864 (T. Kelly, 1836)

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)

A practical handbook of British birds - Witherby, H. F. (Harry Forbes), 1873 -1944 (Witherby, 1921)

Practical notes on grasses & grass growing in East Anglia - Everitt, Nicholas. (Jarrold, 1897)

Practical observations on the British grasses : especially such as are best adapted to the laying down or improving of meadows and pastures : to which is added an enumeration of the British grasses - Curtis, William, 1746 -1799 (Printed by J. Clyatt, 1804)

Practical physiology of plants - Darwin, Francis, Sir, 1848 -1925 (University press, 1901)

Practical physiology of plants - Darwin, Francis, Sir, 1848 -1925 (University Press, 1895)

Practical plant biochemistry - Onslow, Muriel Wheldale 1880 -1932 (University Press, 1923)

Practical plant biochemistry - Onslow, Muriel Wheldale 1880 -1932 (University press, 1920)

Practical plant biochemistry - Onslow, Muriel Wheldale 1880 -1932 (University Press, 1920)

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

The practical shepherd: a complete treatise on the breeding, management and diseases of sheep - Randall, Henry Stephens, 1811 -1876 (J. B. Lippincott & co, 1863)

A practical treatise on grasses and forage plants: comprising their natural history, comparative nutritive value, methods of cultivating, cutting and curing, and management of grass lands - Flint, Charles Louis, 1824 -1889 (G. P. Putnam, 1857)

Practices for protecting and enhancing fish and wildlife on coal surface-mined land in central and southern Appalachia - United States. Bureau of Mines. (U.S. Department of the Interior, Fish and Wildlife Service, Division of Biological Services, Western Energy Land Use Team, 1983)

Practices for protecting and enhancing fish and wildlife on coal surface-mined land in the southcentral U.S - U.S. Fish; Wildlife Service. Office of Biological Services. (U.S. Department of the Interior, Fish and Wildlife Service, Office of Biological Services, 1983)

Prairie agriculture containing a list of chemical experiments; a series of experiments on the growth of seeds; a description of how plants grow; a sketch of the formation of the prairie soil by water and ice action; an account of farming operations and of crops adapted to Manitoba; a description of diseases of crops, of insects, and of birds; an account with illustrations of the breeds of horses, cattle, sheep, swine and poultry adapted to Manitoba; advantages of mixed farming (Consolidated Stationery Co, 1899)

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

A preliminary check list of the cryptogams and phanerogams in the vicinity of Saint Louis, Missouri - Engelmann Botanical Club. Check List Committee. (The Club, 1911)

Preliminary inventory of Canadian weeds - Crompton, Clifford W. (Agriculture Canada, Research Branch, 1988)

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

Preliminary list of plants of the Metropolitan Park Reservations, 1895 - Massachusetts. Metropolitan Park Commission. (1895)

A preliminary list of the Hemiptera of Colorado - Colorado Agricultural Experiment Station (American Standard, 1895)

A preliminary list of the parasitic fungi of Idaho - United States. Division of Mycology; Disease Survey. (Division of Mycology and Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1936)

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

A preliminary list of the Uredinales of California - Blasdale, Walter Charles, 1871 -1960 (University of California press, 1919)

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

Preliminary report of explorations in Nebraska and Dakota, in the years 1855-'56-'57 - Warren, Gouverneur Kemble, 1830 -1882 (Govt. Print. Off, 1875)

Preliminary report on the alfalfa weevil. [Phytonomus posticus] - Webster, F. M. (Francis Marion), 1849 -1916 (Govt. print. off, 1912)

Price list and descriptive catalogue for 1909 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Barteldes Seed Co, 1909)

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

Price list of agricultural seeds, and treatise on permanent pasture grasses and the adulteration of their seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (James Hunter, 1910)