Oesterreichische botanische Zeitschrift (A. Skofitz, 1906)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1907)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1908)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1916)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1918)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1920)

Oesterreichisches botanisches Wochenblatt ([L.W. Seidel], 1851)

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

OK seeds : annual catalogue 1889 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.A. Everitt & Co, 1889)

Olds' 1909 catalog : seeds for the farm and garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Company, 1909)

Olds' 1917 catalog. "Olds' catalog tells the truth". 30th season - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1917)

Olds' 1918 catalog. "Olds' catalog tells the truth". 31st season - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1918)

Olds' catalog 1913 : seeds for the farm and garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Co, 1913)

Olds' catalog 1914 : seeds for the farm and garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Co, 1914)

Olds' catalog 1915 : 28th season [of] seeds for the farm and garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Co, 1915)

Olds' catalog 1916. farm and garden seeds, seed potatoes, poultry supplies, tools. 29th season - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1916)

Olds' catalog 1920 : 33rd year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1920)

Olds' catalog 1921 : 34th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1921)

Olds' catalog 1922 : 35th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1922)

Olds' catalog 1923 : 36th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1923)

Olds' catalog of farm and garden seeds. 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1919)

Olds' catalogue : seeds for the farm and garden 1910 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. Olds Seed Company, 1910)

On British wild flowers considered in relation to insects - Lubbock, John, Sir, 1834 -1913 (Macmillan, 1875)

On British wild flowers considered in relation to insects - Lubbock, John, Sir, 1834 -1913 (MacMillan, 1890)

On British wild flowers considered in relation to insects - Lubbock, John, Sir, 1834 -1913 (Macmillan, 1909)

On British wild flowers considered in relation to insects - Lubbock, John, Sir, 1834 -1913 (Macmillan, 1890)

On buds and stipules - Lubbock, John, Sir, 1834 -1913 (K. Paul, Trench, Trübner & Co., ltd, 1899)

On the cause of the excretion of water on the surface of nectaries ... - Wilson, William P. (1881)

On the importance of physiologically balanced solutions for plants ... - Osterhout, W. J. V. (Winthrop John Van Leuven), 1871 -1964 (1906)

On the relation of phyllotaxis to mechanical laws - Church, A. H. (Arthur Harry), 1865 -1937 (Williams & Norgate, 1904)

On the setal pattern of caterpillars and pupae - Schierbeek, Abraham, 1887 - (E.J. Brill, 1917)

One-hundred and fifth annual catalogue of high class seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.M. Thorburn & Co, 1906)

One-hundred and ninth annual catalogue of high class seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.M. Thorburn & Co, 1910)

One hundred and second annual catalogue of high-class seeds, 1903 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.M. Thorburn & Co, 1903)

One-hundred-and-sixth annual catalogue of high-class seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.M. Thorburn & Co, 1907)

One hundredth anniversary, 1835-1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wilson S. Brower Co., Inc, 1935)

Onomatologia botanica completa : oder Vollständiges botanisches Wörterbuch ; worinn nicht nur alle Kunstwörter übersetzt und erklärt, die bekannte [sic] Pflanzen nach der Lehrart des Ritters von Linne beschrieben, ihre verschiedene Namen nach den berühmtesten Schriftstellern angeführt, und eine kleine Lebensgeschichte der vornehmsten Kräuterkundigen beygefügt, sondern auch die Heilskräfte und der Nutzen, den die Arzney-Wissenschaft, Landwirtschaft, Färberey, Vieharzney- und Scheidekunst aus denselben ziehen, aus den besten Schriften dieser Art und aus eigener Erfahrung erläutert werden von einer Gesellschaft erfahrner Pflanzenkundiger - Gmelin, Johann Friedrich, 1748 -1804 ([publisher not identified], 1778)

The open door to independence; making money from the soil; what to do–how to do, on city lots, suburban grounds, country farms, together with outline maps of all parts of the United States, irrigated regions, climates, cities, villages, market towns, locations and populations - Hill, Thomas E. (Thomas Edie), 1832 -1915 (Hill standard book company, 1915)

Opera e periodicis collata - Vries, Hugo de, 1848 -1935 (A. Oosthoek, 1918)

Orchidophile; journal des amateurs d'orchideés - Godefroy-Lebeuf, A. (Alexandre), 1844 -1903 (1885)

Orchids, stove, greenhouse and hardy plants, vegetable and flower seeds : for the trade only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitcher & Manda, 1894)

Organographie der Pflanzen, insbesondere der Archegoniaten und Samenpflanzen - Goebel, K. (Karl), 1855 -1932 (G. Fischer, 1898)

Organography of plants, especially of the Archegoniata and Spermaphyta - Balfour, Isaac Bayley, 1853 -1922 (Clarendon press, 1900)

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

Oriental seeds, 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oriental Seed Co, 1929)

Oriental seeds, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oriental Seed Co, 1930)

Oriental seeds, 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oriental Seed Co, 1931)

Oriental seeds, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oriental Seed Co, 1932)

Florist's journal (How and Parsons, 1840)

Florist's journal (How and Parsons, 1842)

Florist's journal (How and Parsons, 1844)

Ornamental gardening in Florida - Simpson, Charles Torrey, 1846 -1932 (The author, 1916)

Ornis Caucasica. Die Vogelwelt des Kaukasus : systematisch und biologisch-geographisch beschrieben - Radde, Gustav, 1831 -1903 (Verlag von Theodor Fischer, 1884)

The Osage garden book [of] vegetable and flower seeds : spring 1924 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.W. Osage Seed Co, 1924)

The Osage garden book : vegetable and flower seeds : spring 1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.W. Osage Seed Co, 1925)

Otia conchologica : descriptions of shells and mollusks, from 1839 to 1862 - Gould, Augustus A. (Augustus Addison), 1805 -1866 (Gould and Lincoln, 1862)

Our 1924 catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Drumm Seed and Floral Co, 1924)

Our annual catalog of "pure & sure" seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (St. Louis Seed Co, 1907)

Our annual message : 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (St. Louis Seed Co, 1908)

Our insect friends and foes - Duncan, F. Martin (Francis Martin), 1873 -1961 (Methuen, 1911)

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

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

Outlines of course of instuction in agricultural nature study for the rural schools of California - California Agricultural Experiment Station. (1923)

Oxford gardens, based upon Daubeny's Popular guide to the physick garden of Oxford: with notes on the gardens of the colleges and on the University park - Gunther, R. T. (Robert Theodore), 1869 -1940 (Parker & son; [etc., etc.], 1912)

Oxford gardens. Based upon Daubeny's Popular guide to the physick garden of Oxford : with notes on the gardens of the colleges and on the University Park - Gunther, R. T. (Robert Theodore), 1869 -1940 (Parker, 1912)

P. Mann & Co. farm, garden and lawn : annual for 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (P. Mann, 1907)

P. Mann & Co. farm, garden and lawn : annual for 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (P. Mann, 1908)

Pacific Seed Company 1902 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bagnall & Son, 1902)

Packaged bulbs : packaged roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Growers Exchange Inc, 1959)

The Page-Philipps Seed Co.'s farm & garden guide. season of 1916. 64th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Page-Philipps Seed Co, 1916)

The Page-Philipps Seed Co.'s farm & garden guide. season of 1917. 65th year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Page-Philipps Seed Co, 1917)

Page's home floriculture; a complete guide for the growing of flowers in the house and garden - Page, Chas. N. (Charles Nash), 1860 - (The author, 1911)

Paleobotany and biogeography : a festschrift for Alan Graham in his 80th year - Raven, Peter H (Missouri Botanical Garden, 2014)

Palisades popular perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Palisades Nurseries Inc, 1914)

Palladin's Plant physiology - Hopping, Aleita, 1890 - (P. Blakiston's son, 1926)

Palmer's seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Palmer Seed Company, 1931)

Palmer's seeds : 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Palmer Seed Company, 1928)

Palmer's seeds, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Palmer Seed Company, 1932)

Palmer's seeds, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Palmer Seed Company, 1935)

Pamietnik Zakadu genetycznego = Mémoires de l'Institut de génétique - Szkoa Gówna Gospodarstwa Wiejskiego w Warszawie. Zakad Genetyki. (B. Wierzbicki, 1921)

Pamphlets on silviculture (1899)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1957)

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)

Park's 1940 flower book - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Company, 1940)

Park's 1941 flower book - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Company, 1941)

Park's floral guide - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George W. Park, 1900)

Park's floral guide - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1912)

Park's floral guide - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1897)

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

Park's floral guide 1901 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George W. Park, 1901)

Park's floral guide 1903 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1903)

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 : 1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1915)

Park's floral guide for 1907 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1907)