Observations on the Coccidae of Egypt - Hall, W. J. (Wilfrid John), 1892 -1965 (Government Press, 1922)

Observations on the colors of flowers - Hervey, E. W. (Eliphalet Williams), 1834 -1925 (E. Anthony & Sons, 1899)

Observations on the Neilgherries; including an account of their topography, climate, soil, & productions, and of the effects of the climate on the European constitution ... - Baikie, Robert. (Printed at the Baptist mission press, 1834)

Occasional papers - San Diego Society of Natural History. (San Diego Society of Natural History, 1949)

Occasional Papers of the Bernice Pauahi Bishop Museum of Polynesian Ethnology and Natural History - Bernice Pauahi Bishop Museum. (Bishop Museum Press, 1898)

Occasional papers of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1869)

Odorographia : a natural history of raw materials and drugs used in the perfume industry : intended to serve growers, manufacturers and consumers - Sawer, John Charles (Gurney & Jackson, 1892)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1860)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1862)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1866)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1876)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1877)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1878)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1889)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1890)

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

Offer No. 29 : February 9th, 1929 price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1929)

Offer No. 31 : March 9th, 1929 price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1929)

Offer No. 32 : April 1st, 1929 price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1929)

Offer No. 34 : June 1st, 1929 price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1929)

Offer No. 50 : Nov. 7, 1929 price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1929)

Offer No. 59, November 1st, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, inc, 1930)

Offer No. 61 : January, 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, inc, 1931)

Official guide to the Botanic Gardens, Dominica : illustrated : with an index of the principal plants - Botanic Gardens (Dominica) (The Garden, 1922)

Official guide to the museums of economic botany. No. 1, Dicotyledons - Royal Botanic Gardens, Kew. (Printed for H.M. Stationery Off., by Darling, 1907)

Öfversigt af Finska vetenskaps-societetens förhandlingar - Suomen Tiedeseura (s.n.], 1872)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1852)

Ogden Nurseries, Incorporated, Aurora, Illinois - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Ogden Nurseries, Incorporated, 1937)

Ohio forest trees; containing brief descriptions of all the native species and a key for their identification based on the leaves and fruit - Kellerman, W. A. (William Ashbrook), 1850 -1908 (Published by the author, 1895)

The Ohio journal of science - Ohio Academy of Science. (Ohio Academy of Science, 1909)

Ohio mycological bulletin - Ohio State University. (Ohio State University, 1903)

The Ohio naturalist - Ohio Academy of Science. (Biological Club of the Ohio State University, 1905)

The Ohio naturalist - Ohio Academy of Science. (Biological Club of the Ohio State University, 1903)

The Ohio naturalist - Ohio Academy of Science. (Biological Club of the Ohio State University, 1911)

Old and new ornamental trees, shrubs & flowers for landscape planting : wholesale price list : spring 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Teas Nursery Co, 1926)

Old Colony Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Old Colony Nurseries, 1897)

Old Colony Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Old Colony Nurseries, 1901)

Old Colony Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Old Colony Nurseries, 1902)

Old Colony Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Old Colony Nurseries, 1900)

Old Colony Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Old Colony Nurseries, 1903)

Omphalos: an attempt to untie the geological knot ... - Gosse, Philip Henry, 1810 -1888 (J. Van Voorst, 1857)

"On gardening" - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (1938)

"On gardening" : 1928 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (1928)

On molecular and microscopic science - Somerville, Mary, 1780 -1872 (J. Murray, 1869)

On the Apocynaceae of South America, with some preliminary remarks on the whole family ... - Miers, John, 1789 -1879 (Williams and Norgate, 1878)

On the movements and habits of climbing plants - Darwin, Charles, 1809 -1882 (Longman, Green, Longman, Roberts & Green and Williams and Norgate, 1865)

On the study and value of Chinese botanical works : with notes on the history of plants and geographical botany from Chinese sources - Bretschneider, E. (Emil), 1833 -1901 (1871)

On the vegetation of the Bermudas - Jones, J. Matthew (John Matthew), 1828 -1888 (s.n, 1874)

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)

Opuscules de botanique - Clos, Dominique, 1821 -1908 (1859)

Orchard & garden book, 1944 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1944)

Orchard & garden book, 1945 - Roeding, George Christian, 1868 -1928 (California Nursery Company, 1945)

Orchard & garden book, 1946 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1946)

Orchard and farm (Calkins Newspaper Syndicate, 1898)

Orchard and garden (J.T. Lovett, 1889)

Orchard and garden book, 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1936)

Orchard Hill Nursery : spring 1927 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Orchard Hill Nursery, 1927)

Orchard Hill Nursery : spring 1928 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Orchard Hill Nursery, 1928)

The orchard the garden the landscape : catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (John S. Kerr Nursery Company, 1928)

The orchard the garden the landscape : catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (John S. Kerr Nursery Company, 1922)

The orchard the garden the landscape : catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (John S. Kerr Nursery Company, 1929)

The orchard the garden the landscape : catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (John S. Kerr Nursery Company, 1923)

The orchard the garden the landscape : catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (John S. Kerr Nursery Company, 1930)

The orchard the garden the landscape : catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (John S. Kerr Nursery Company, 1935)

The orchard the garden the landscape : catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (John S. Kerr Nursery Co. (Incorporated), 1927)

The orchard the garden the landscape : catalog of The John S. Kerr Nursery Company - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (John S. Kerr Nursery Company, 1918)

L'orchidophile; traité théorique et pratique sur la culture des orchidées - Du Buysson, François. (Goin, 1878)

Orchidophile; journal des amateurs d'orchideés - Godefroy-Lebeuf, A. (Alexandre), 1844 -1903 (1890)

Orchids; a description of the species and varieties grown at Glen Ridge, near Boston, with lists and descriptions of other desirable kinds : preface by chapters on the culture, propagation, collection, and hybridization of orchids; the construction and management of orchid houses; a glossary of botanical terms and significance of their names; the whole forming a complete manual of orchid culture - Rand, Edward Sprague, Jr., 1834 -1897 (Houghton, Mifflin and company, 1888)

Orchids and greenhouse plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Co, 1916)

Orchids, stove and greenhouse plants : select nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Julius Roehrs Company, 1913)

Oréades - Instituto de Ciências Biológicas da UFMG. Departamento de Botânica. (Departamento de Botânica, U.F.M.G, 1970)

Oréades - Instituto de Ciências Biológicas da UFMG. Departamento de Botânica. (Departamento de Botânica, U.F.M.G)

Oréades - Instituto de Ciências Biológicas da UFMG. Departamento de Botânica. (Departamento de Botânica, U.F.M.G, 1981)

Oregon roses and other beautiful flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Clarke Bros, 1916)

Oregon Seed Store, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oregon Seed Store, 1930)

Oregon Seed Store, 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oregon Seed Store, 1931)

The organic constituents of plants and vegetable substances and their chemical analysis - Wittstein, Georg Christian, 1810 -1887 (MCarron, Bird & Co, 1878)

Die organische Chemie in ihrer Anwendung auf Agricultur und Physiologie - Liebig, Justus, Freiherr von, 1803 -1873 (F. Vieweg, 1841)

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

Organographie vegetale ; ou, Description raisonnee des organes des plantes, pour servir de suite et de developpement a la theorie elementaire de la botanique, et d'introduction a la physiologie vegetale et a la description des familles, avec 60 planches en taille-douce - Candolle, Augustin Pyramus de, 1778 -1841 (Chez Deterville, libraire, rue Hautefeuille, no.8, 1827)

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

Organologisches, systematisches und Arten-Register zu den Tafeln des Handbuch's der botanischen Terminologie - Bischoff, Gottlieb Wilhelm, 1797 -1854 (J.L. Schrag, 1849)

The origin of floral structures through insect and other agencies - Henslow, George, 1835 -1925 (D. Appleton, 1888)

The origin of floral structures through insect and other agencies - Henslow, George, 1835 -1925 (K. Paul, Trench, Trübnerco, 1888)

The origin of floral structures through insect and other agencies - Henslow, George, 1835 -1925 (D. Appleton and Co, 1888)

The origin of floral structures through insects and other agencies - Henslow, George, 1835 -1925 (D. Appleton and company, 1888)

The Original Barnes nursery, established 1890 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Barnes Bros. Nursery Co, 1932)

The Original Barnes nursery, established 1890 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Barnes Bros. Nursery Co, 1931)

Florist's journal (How and Parsons, 1840)

Florist's journal (How and Parsons, 1842)

Florist's journal (How and Parsons, 1844)

Florist's journal (How and Parsons, 1846)

Florist's journal (How and Parsons, 1848)

Ornamental and fruit trees and shrubs. a guide to Southern horticulture .... 1918 catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Royal Palm Nurseries, 1918)

Ornamental and fruit trees, evergreens, shrubbery, perennials, vines and roses, landscape gardening - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Roselawn Nursery, 1922)

Ornamental and fruit trees, evergreens, shrubbery, perennials, vines and roses, landscape gardening - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Roselawn Nursery, 1924)

Ornamental and fruit trees : illustrated descriptive catalog 1921-22 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Co, 1921)

Ornamental and fruit trees : price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Co, 1921)