Oesterreichische botanische Zeitschrift (A. Skofitz, 1877)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1879)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1881)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1882)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1883)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1889)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1892)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1893)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1894)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1895)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1896)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1898)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1900)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1905)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1906)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1908)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1913)

Oesterreichisches botanisches Wochenblatt ([L.W. Seidel], 1852)

Oesterreichisches botanisches Wochenblatt ([L.W. Seidel], 1853)

Oesterreichisches botanisches Wochenblatt ([L.W. Seidel], 1855)

Oesterreichisches botanisches Wochenblatt ([L.W. Seidel], 1856)

Die officinellen Pflanzen der Pharmacopoea Germanica für Pharmaceuten und Mediciner besprochen und durch Originalabbildungen erläutert - Kohl, F. G. (Friedrich Georg), 1855 -1910 (Barth, 1895)

Die offizinellen Pflanzen und Drogen :eine systematische Übersicht über die in sämtlichen Staaten Europas sowie in Japan und den Vereinigten Staaten von Amerika offizinellen Pflanzen und Drogen mit kurzen erläuternden Bemerkungen - Mitlacher, Wilhelm, 1872 -1913 (C. Fromme, 1912)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1873)

The Ohio naturalist - Ohio Academy of Science. (Biological Club of the Ohio State University, 1910)

Olds' field, garden and flower seeds : sixty-fifth year 1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Co, 1952)

Olds' seed book, 1943 edition, 56th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Co, 1943)

Olds' seed book, 53rd year, 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1940)

Olds' seed book, 54th year, 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Co, 1941)

Olds' seed book, 55th year, 1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Co, 1942)

Olds' seeds, 1945, 58th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1945)

Olds' seeds, 1950, sixty-third year : field, garden and flower - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1950)

Olds' seeds : 1957, our 70th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1957)

Olds' seeds : 1958, our 71st year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1958)

Olds' seeds, field, flower and garden : 1955, our 68th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1955)

Olds' seeds, field, flower and garden seed : 1954, our 67th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1954)

Olds' seeds, field, garden and flower seeds : 1947, 60th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1947)

Olds' seeds, field, garden and flower seeds : 1948, sixty-first year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1948)

Olds' seeds,1946, 59th year : field, garden and flower seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1946)

Olds' seeds,1949, sixty-second year : field, garden and flower - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1949)

The onion (ICAR-Directorate of Knowledge Management in Agriculture, Indian Council of Agricultural Research, 2015)

The Orchadian - Australasian Native Orchid Society (The Society, 1994)

The Orchadian - Australasian Native Orchid Society (The Society, 1993)

Orchis :Monatsschrift der Deutschen Gesellschaft für Orchideenkunde - Dammer, Udo. (1915)

Organography of plants, especially of the archegoniatae and spermaphyta - Goebel, K. (Karl), 1855 -1932 (Clar. Press, 1900)

Outlines of British fungology; containing characters of above a thousand species of Fungi, and a complete list of all that have been described as natives of the British Isles - Berkeley, M. J. (Miles Joseph), 1803 -1889 (L. Reeve, 1860)

Outlines of classification and special morphology of plants - Goebel, K. (Karl), 1855 -1932 (Clarendon Press, 1887)

Outlines of classification and special morphology of plants - Balfour, Isaac Bayley, 1853 -1922 (Clarendon Press, 1887)

Oversigt over det Kongelige Danske videnskabernes selskabs forhandlinger = Bulletin de l'Académie royale des sciences et des lettres de Danemark - Kongelige Danske videnskabernes selskab. (A.F. Høst, 1884)

Oversigt over det Kongelige Danske videnskabernes selskabs forhandlinger = Bulletin de l'Académie royale des sciences et des lettres de Danemark - Kongelige Danske videnskabernes selskab. (A.F. Høst, 1897)

Palaeontographica (Theodor Fischer, 1871)

Palaeontographica Americana - Paleontological Research Institution (Ithaca, N.Y.) (Paleontological Research Institution, 1937)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1897)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1900)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1904)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1914)

Pamietnik Fizyjograficzny (Druk K. Kowalewskiego, 1896)

Pamphlets on forest protection (1900)

Papers presented at the Celebration of the Twentieth Anniversary of the New York Botanical Garden, September 6-9, 1915. Published by the aid of the David Lydig Fund, bequethed by Charles P. Daly - New York Botanical Garden (1916)

Parasitic fungi of Illinois. Part II, Erysipheae, Lév - Earle, F. S. (Franklin Sumner), 1856 -1929 (J.W. Franks & Sons, 1887)

The parasitic fungi of New Jersey - Schwarze, Carl Alois, 1886 - (New Jersey Agricultural Experiment Stations, 1917)

Parasitic rhizoctonias in America - Peltier, George Leo, 1888 - (1916)

I parassiti vegetali delle piante coltivate od utili - Ferraris, Teodoro. (Sineo & Bo, 1913)

A pathological survey of the Para rubber tree (Hevea brasiliensis) in the Amazon Valley - Weir, James R. (James Robert), 1882 -1943 (U.S. Dept. of Agriculture, 1926)

Patologia vegetale. Fanerogame parassite, mixomiceti, bacterii, ifomiceti od eumiceti (funghi) - Voglino, Pietro. (Unione tipografico-editrice [Gia ditta Pomba e c], 1905)

The Peanut, the unpredictable legume; a symposium - Arant, F. S. (Frank Selman), 1904 - (National Fertilizer Association, 1912)

Peas and pea culture; a practical and scientific discussion of peas, relating to the history, varieties, cultural methods, insect and fungous pests, with special chapters on the canned pea industry, peas as forage and soiling crops, garden peas, sweet peas, seed breeding, etc - Sevey, Glenn Cyrus, 1879 - (Orange Judd company, 1919)

Peas and pea culture; a practical and scientific discussion of peas, relating to the history, varieties, cultural methods, insects and fungous pests, with special chapters on the canned pea industry, peas as forage and soiling crops, garden peas, sweet peas, seed breeding, etc - Sevey, Glenn Cyrus, 1879 - (Orange Judd company, 1911)

Peas and pea culture; a practical and scientific discussion of peas, relating to the history, varieties, cultural methods, insect and fungous pests, with special chapters on the canned pea industry, peas as forage and soiling crops, garden peas, sweet peas, seed breeding, etc - Sevey, Glenn Cyrus, 1879 - (Orange Judd Company, 1911)

Pest control by chemical, biological, genetic, and physical means; a symposium. Chairman: E. F. Knipling ... presented at the meeting of the American Association for the Advancement of Science, Section 0 on Agriculture, December 26-31, 1964 - Knipling, E. F. (Agricultural Research Service, U.S. Dept. of Agriculture, 1966)

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