Muhlenbergia - Heller, Amos Arthur, 1867 -1944 (1913)

Die mutationstheorie. Versuche und beobachtungen über die entstehung von arten im pflanzenreich - Vries, Hugo de, 1848 -1935 (Veit & comp, 1903)

My garden in spring - Bowles, E. A. (Edward Augustus), 1865 -1954 (Dodge Pub. Co, 1914)

My garden, its plan and culture together with a general description of its geology, botany, and natural history - Smee, Alfred, 1818 -1877 (Bell and Daldy, 1872)

My shrubs - Phillpotts, Eden, 1862 -1960 (John Lane, 1915)

Mycologia - New York Botanical Garden (New York Botanical Garden, 1916)

Mycologia - New York Botanical Garden (New York Botanical Garden, 1922)

Narrative of a journey to the shores of the Polar Sea, in the years 1819, 20, 21, and 22 - Franklin, John, Sir, 1786 -1847 (J. Murray, 1823)

Native Plant Society of Oregon - Native Plant Society of Oregon. (The Society, 2009)

Native plants and seeds from the Pacific Northwest - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl S. English, Jr, 1935)

Native plants and shrubs from the Pacific Northwest - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Alfred A. Loeb, 1926)

Native seeds and plants from the Pacific Northwest, 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl S. English, Jr, 1939)

Native seeds from the Pacific Northwest, 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl S. English, Jr, 1936)

Native woody plants of the United States : their erosion-control and wildlife values - Mulford, Furman Lloyd, 1869 - (U.S. Dept. of Agriculture, 1938)

Native woody plants of the United States, their erosion-control and wildlife values - United States. (U. S. Govt. print. off, 1938)

Die Natur - Müller, Karl, 1818 -1899 (G. Schwetschke, 1852)

Naturae novitates : Bibliographie neuer Erscheinungen aller Länder auf dem Gebiete der Naturgeschichte und der exacten Wissenschaften (R. Friedländer & Sohn, 1894)

The natural history of the Tineina ... - Stainton, H. T, (Henry Tibbats) 1822 -1892 (J. Van Voorst; [etc.,etc.], 1873)

Natural selection and tropical nature - Wallace, Alfred Russel, 1823 -1913 (Macmillan and co, 1891)

Natural selection and tropical nature : essays on descriptive and theoretical biology - Wallace, Alfred Russel, 1823 -1913 (Macmillan, 1891)

Natural selection and tropical nature; essays on descriptive and theoretical biology - Wallace, Alfred Russel, 1823 -1913 (Macmillan and Co, 1895)

The naturalisation of animals & plants in New Zealand - Thomson, George Malcolm 1848 -1933 (University Press, 1922)

The naturalisation of animals & plants in New Zealand - Thomson, George Malcolm 1848 -1933 (The University Press, 1922)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1864)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1935)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1953)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1982)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 2009)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 2013)

The naturalist's diary: a day-book of meteorology, phenology and rural biology. With a chart showing the blossoming of spring flowers in Europe, and an introduction of natural periodic phenomena, etc. 188 - Roberts, Charles, Dec 31 1901 (Sonnenschein, Le Bas and Lowrey, 1886)

Naturalist's guide to the Americas - Ecological Society of America. Committee on the Preservation of Natural Conditions. (Williams & Wilkins, 1926)

Les Naturalistes belges - Fédération Des Sociétés Belges Des Sciences De La Nature. (La Fédération, 1923)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1903)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1908)

Naturen : illustreret maanedsskrift for populaer naturvidenskab - Bergens Museum. (E. B. Giertsen [etc.], 1908)

Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet - Engler, Adolf, 1844 -1930 (W. Engelmann, 1897)

Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet - Engler, Adolf, 1844 -1930 (W. Engelmann, 1887)

Naturwissenschaftliche Rundschau : wöchentliche Berichte über die Fortschritte auf dem Gesammtgebiete der Naturwissenschaften (Druck und verlag von Friedrich Vieweg und Sohn, 1903)

Naturwissenschaftliche Rundschau : wöchentliche Berichte über die Fortschritte auf dem Gesammtgebiete der Naturwissenschaften (Druck und verlag von Friedrich Vieweg und Sohn, 1906)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1890)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1918)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1919)

Nederlandsch kruidkundig archief - Koninklijke Nederlandse Botanische Vereniging. (S. en J. Luchtmans, 1914)

Nederlandsch kruidkundig archief - Koninklijke Nederlandse Botanische Vereniging. (S. en J. Luchtmans, 1920)

Neue allgemeine deutsche Garten- und Blumenzeitung - Mettler, Rudolph. (G. Heubel's Buch- und Kunsthandlung, 1845)

Neue allgemeine deutsche Garten- und Blumenzeitung - Mettler, Rudolph. (G. Heubel's Buch- und Kunsthandlung, 1846)

Neue allgemeine deutsche Garten- und Blumenzeitung - Mettler, Rudolph. (G. Heubel's Buch- und Kunsthandlung, 1850)

Neue allgemeine deutsche Garten- und Blumenzeitung - Mettler, Rudolph. (G. Heubel's Buch- und Kunsthandlung, 1851)

The new American botanist and florist - Wood, Alphonso, 1810 -1881 (A. S. Barnes & co, 1889)

New descriptive price list of the fruit, ornamental trees, vines, plants, etc., etc. : fall 1911 spring 1912 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.B. Watkins & Bro, 1911)

New England trees & plants : spring 1911 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New England Nurseries, Incorporated, 1911)

A new instructor for garden, orchard and field culture - Meyer, G. N. H., (1887)

New plant introductions - United States. Office of Foreign Seed; Plant Introduction. (G.P.O, 1915)

New Plant introductions - United States. Office of foreign seed; plant introduction. (1915)

The new practical window gardener; being practical directions for the cultivation of flowering and foliage plants in windows and glazed cases, and the arrangement of plants and flowers for the embellishment of the household - Mollison, John R. (Groombridge and sons, 1877)

New Zealand journal of science (1882)

News letter - United States. Bureau of Entomology; Plant Quarantine. (Bureau of Entomology and Plant Quarantine, 1934)

NHS news - Northwest Horticultural Society. (Northwest Horticultural Society, 1988)

Nomenclator botanicus. Nominum ad finem anni 1858 publici juris factorum, classes, ordines, tribus, familias, divisiones, genera, subgenera vel sectiones designatium enumeratio alphabetica. Adjectis auctoribus, temporibus, locis systematicis, apud varios, notis literariis atque etymologicis et synonymis - Pfeiffer, Louis (Ludwig Georg Karl), 1805 -1877 (Sumptibus T. Fischeri, 1873)

Nomenclator botanicus, seu, Synonymia plantarum universalis :enumerans ordine alphabetico nomina atque synonyma, tum generica tum specifica, et a Linnaeo et a recentioribus de re botanica scriptoribus plantis phanerogamis imposita - Steudel, Ernst Gottlieb, 1783 -1856 (typis et sumptibus J.G. Cottae, 1840)

Die Nordamerikanische Vogelwelt - Ridgway, Robert, 1850 -1929 (G. Brumber, 1891)

North American flora - New York Botanical Garden (New York Botanical Garden, 1920)

North American flora - New York Botanical Garden (New York Botanical Garden, 1931)

North American flora - New York Botanical Garden (New York Botanical Garden, 1908)

Northrup, King & Co.'s thirty-second annual catalogue [of] sterling seeds : 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Northrup, King & Co, 1916)

Northrup, King & Co.'s thirty-third annual catalogue [of] sterling seeds : 1917 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Northrup, King & Co, 1917)

Notizblatt des Königl. Botanischen Gartens und Museums zu Berlin - Engler, Adolf, 1844 -1930 (In Commission bei Wilhelm Engelmann, 1905)

Nouveaux mémoires de l'Académie royale des sciences et belles-lettres de Bruxelles - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (1841)

Nouveaux mémoires de l'Académie royale des sciences et belles-lettres de Bruxelles - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (1842)

Nouveaux mémoires de l'Académie royale des sciences et belles-lettres de Bruxelles - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (1843)

Nouvelle flore usuelle et médicale, ou, Histoire et description de tous les végétaux utiles, tant indigènes qu'exotiques, avec leur application à la médecine et à l'horticulture - Dupuis, Aristide, 1823 -1883 (Firmin Didot frères, 1853)

Nouvelles archives du Muséum d'histoire naturelle - Muséum national d'histoire naturelle (France) (Masson et Cie, 1910)

Nova acta physico-medica Academiae Caesareae Leopoldino-Carolinae Naturae Curiosum - Academia Caesarea Leopoldino-Carolina Naturae Curiosorum. (1841)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1890)

Occasional paper - Entomological Society of British Columbia (The Society, 1951)

Occurrence of shrubs and herbaceous vegetation after clear cutting old-growth Douglas-fir in the Oregon Cascades - Pacific Northwest Forest; Range Experiment Station (Portland, Or.) (Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1960)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1897)

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

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

One hundred water-color paintings of California wild flowers by Ethel M. Wickes - Wickes, Ethel May, 1872 -1940 (s.n, 1920)

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

Florist's journal (How and Parsons, 1844)

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)

Ornamental Nurseries : catalogue of shade and ornamental trees, shrubs, vines, roses, perennial plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry Kohankie & Son, 1908)

Ornamental nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Jewell Nursery Co, 1908)

Ornamental nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Jewell Nursery Co, 1916)

Ornamental plants for landscape gardening : a catalog of dependable ornamentals for outdoor planting, 1925-1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weed's Landscape Nursery, 1925)

Ornamental plants for landscape gardening : a catalog of dependable ornamentals for outdoor planting, 1924-1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weed's Nursery, 1924)

Ornamental plants for landscape planting : a catalog of dependable ornamentals for outdoor planting, 1923-1924 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weed's Landscape Nursery, 1923)

Ornamental plants for landscape planting : a catalog of dependable ornamentals for outdoor planting : 1922-1923 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weed Landscape Nursery, 1922)

Ornamental plants for landscape planting : a list of dependable ornamentals for outdoor art - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weed Landscape Nursery, 1922)

Ornamental shrubs for garden, lawn, and park planting, with an account of the origin, capabilities, and adaptations of the numerous species and varieties, native and foreign, and especially of the new and rare sorts, suited to cultivation in the United States - Davis, Lucius Daniel, 1826 - (Putnam, 1899)

Ornamental shrubs for garden, lawn, and park planting, with an account of the origin, capabilities, and adaptations of the numerous species and varieties, native and foreign, and especially of the new and rare sorts, suited to cultivation in the United States - Davis, Lucius Daniel, 1826 - (G.P. Putnam's sons, 1899)

Ornamental shrubs of the United States (hardy, cultivated) - Apgar, A. C. (Austin Craig), 1838 -1908 (American Book Company, 1910)

Ornamental shrubs of the United States, hardy, cultivated - Apgar, A. C. (Austin Craig), 1838 -1908 (American Book Co, 1910)

Ornamentals, roses, etc. : advance list to the trade only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Portland Wholesale Nursery Co, 1927)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1895)

The oyster-shell scale and the scurfy scale - United States. Office of Experiment Stations. (U.S. Dept. of Agriculture, 1910)

Pacific Coast tree seeds, new 1939 crop : wholesale catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Manning Seed Company, 1939)

Painesville Nurseries : fruit and ornamental trees, shrubs, roses, seeds and bulbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Storrs and Harrison Co, 1914)

Pamphlets on forestry. History (1900)

Pamphlets on silviculture (1899)

Park and cemetery and landscape gardening - Haight, R. J. (Rufus J.) (R.J. Haight, 1916)

Park's floral guide : 1902 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1902)

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

Parkbäume und ziersträucher - Feucht, Otto (Strecker & Schröder, 1910)

The parks, promenades & gardens of Paris : described and considered in relation to the wants of our own cities and of public and private gardens - Robinson, W. (William), 1838 -1935 (John Murray, 1869)

The parks, promenades, & gardens of Paris, described and considered in relation to the wants of our own cities, and the public and private gardens - Robinson, W. (William), 1838 -1935 (J. Murray, 1869)

Paxton's Botanical dictionary; comprising the names, history, and culture of all plants known in Britain; with a full explanation of technical terms. New ed. including all the new plants up to the present year - Paxton, Joseph, Sir, 1803 -1865 (Bradbury, Evans, & co, 1868)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1834)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1836)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1838)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1839)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1842)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1843)