Natural science : a monthly review of scientific progress (Macmillan and Company [etc.], 1894)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1916)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1917)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1978)

A naturalist in the Great Lakes region - Downing, Elliot Rowland, 1868 -1944 (The University of Chicago Press, 1922)

A naturalist in the Great Lakes region - Downing, Elliot Rowland, 1868 -1944 (University of Chicago Press, 1922)

Le Naturaliste canadien - Provancher, L. (Léon), 1820 -1892 (Éditions, l'Ardoise [etc.], 1874)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1885)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1887)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1897)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1907)

Nature's clock for your flower garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Andorra Nurseries, Inc, 1932)

Nature studies in Berkshire - Adams, John Coleman, 1849 -1922 (G. P. Putnam's sons, 1899)

Nature studies in Berkshire - Adams, John Coleman, 1849 -1922 (G.P. Putnam's sons, 1899)

The nature-study review - American Nature Study Society. (Comstock Pub. Co, 1905)

The Nature-study review : devoted to all phases of nature-study in elementary schools - American Nature Study Society. ([M.A. Bigelow], 1920)

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 Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1891)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 1950)

Nederlandsch kruidkundig archief - Koninklijke Nederlandse Botanische Vereniging. (S. en J. Luchtmans, 1899)

Neues allgemeines Garten-Magazin - Bernhardi, Johann Jacob, 1774 -1850 (Im Verlage der Grossherzogl. Sachs. priv. Landes-Industrie-Comptoirs, 1828)

Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart's Verlagshandlung, 1871)

Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart's Verlagshandlung, 1887)

Neues Journal für die Botanik - Schrader, H. A. (Heinrich Adolph),‏ 1767 -1836 (Friedrich August Knick, 1806)

Neues Journal für die Botanik - Schrader, H. A. (Heinrich Adolph),‏ 1767 -1836 (Friedrich August Knick, 1810)

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

New England bulbs & flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New England Nurseries, Incorp'd, 1910)

New England bulbs & flowers : fall 1911 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New England Nurseries, Incorporated, 1911)

New England bulbs, plants, evergreens, roses and potted strawberries : for autumn planting 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New England Nurseries, Inc, 1908)

The New England farmer (J. Nourse, 1869)

New England ferns and their common allies; an easy method of determining the species - Eastman, Helen, 1863 - (Houghton, Mifflin and Co, 1904)

The New England Nurseries Company [catalog], Bedford, Massachusetts - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New England Nurseries, 1915)

The New England Nurseries Company [catalog], Bedford, Massachusetts - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New England Nurseries, 1916)

The New England Nurseries, Incorporated : hardy trees, shrubs and plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New England Nurseries, Incorporated, 1912)

New England trees & plants 1910 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (New England Nurseries, Incorporated, 1910)

The new method of education - Whittemore, William Lewis, 1824 -1911 (The Tufts college press, 1911)

The new method of education : with illustrative examples, extracts from school documents, and a catalogue of the Normal High School [Milford, N.H.] - Whittemore, William Lewis, 1824 -1911 (The Tufts College Press, 1911)

The New phytologist - Tansley, A. G., Sir, (Arthur George), 1871 -1955 (Academic Press, 1905)

The New phytologist - Tansley, A. G., Sir, (Arthur George), 1871 -1955 (Academic Press, 1913)

New York State Museum bulletin - New York State Museum. (University of the State of New York, 1917)

New York State Museum bulletin - New York State Museum. (University of the State of New York, 1921)

New York State Museum bulletin - New York State Museum. (University of the State of New York, 1920)

New York State Museum bulletin - New York State Museum. (University of the State of New York, 1925)

New York State : state floras - Gray, Asa, 1810 -1888 (various publishers, 1814)

News - Indiana Native Plant; Wildflower Society. (Indiana Native Plant and Wildflower Society, 1998)

Newsletter - British Pteridological Society. (British Pteridological Society, 1970)

Newsletter - British Pteridological Society. (British Pteridological Society, 1972)

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

Nineteen-sixteen catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (D.M. Andrews, 1916)

Nineteen-twenty catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (D.M. Andrews, 1920)

Nippon Shokubutsumeii : or nomenclature of Japanese plants in Latin, Japanese and Chinese - Matsumura, Jinzo, 1856 -1928 (Z.P. Maruya, 1884)

NOAA technical report NMFS CIRC - United States. National Marine Fisheries Service. (U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, 1973)

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)

North American ferns and wild flowers for fall 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Aiken Nurseries, 1933)

North American flora - New York Botanical Garden (New York Botanical Garden, 1907)

North American flora - New York Botanical Garden (New York Botanical Garden, 1927)

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

North American geology and paæontology for the use of amateurs, students, and scientists - Miller, S. A. (Samuel Almond), 1836 -1897 ([Western Methodist Book Concern], 1889)

North American mesozoic and cænozoic geology and palæontology; or, An abridged history of our knowledge of the triassic, jurassic, cretaceous and tertiary formations of this continent - Miller, S. A. (Samuel Almond), 1836 -1897 (Printed by J. Barclay, 1881)

North American wildflowers and ferns : fall 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George D. Aiken, 1934)

North American wildflowers and ferns for fall 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Aiken Nurseries, 1933)

North Wisconsin native plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. G. Knowlton, 1929)

North Wisconsin wildlings from the Green Grassy Hollow ; F. G. Knowlton - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Green Grassy Hollow, 1930)

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

Notes on distribution of vascular plants of Newfoundland, Labrador, and adjacent Quebec - Fernald, Merritt Lyndon, 1873 -1950 (1901)

Notes on the distribution of Pennsylvania plants : based on specimens in the Carnegie Museum of Natural History herbarium - Carnegie Museum of Natural History (Carnegie Museum of Natural History, 1989)

Notes on the flora of Newfoundland - Fernald, Merritt Lyndon, 1873 -1950 (1925)

Notes on the flora of Nova Scotia - Fernald, Merritt Lyndon, 1873 -1950 (1920)

Notizblatt des Königl. Botanischen Gartens und Museums zu Berlin - Engler, Adolf, 1844 -1930 (In Commission bei Wilhelm Engelmann, 1902)

Notizie della vita e delle opere di Pier'Antonio Micheli : botanico fiorentino - Targioni Tozzetti, Giovanni, 1712 -1783 (F. Le Monnier, 1858)

Nova acta Academiae Caesareae Leopoldino-Carolinae Germanicae Naturae Curiosorum - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (E. Blochmanni et Filii, 1874)

Nova acta Academiae Caesareae Leopoldino-Carolinae Germanicae Naturae Curiosorum - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (E. Blochmanni et Filii, 1890)

Nova acta physico-medica Academiae Caesareae Leopoldino-Carolinae Naturae Curiosum - Academia Caesarea Leopoldino-Carolina Naturae Curiosorum. (1836)

Novelties & general catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.A. Manda, Inc, 1916)

Novelties and specialties - Manda, W.A., Inc. (W.A. Manda, Inc, 1915)

Nursery stock and greenhouse products : wholesale list, spring 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bobbink & Atkins, 1931)

Observations on the flowering plants, ferns and fern allies growing wild in Marquette County, Michigan, in 1916 and 1917, especially in the vicinity of the Huron Mountain Club - University of Michigan. Museum of Zoology. (Published by the University, 1918)

Observations on the geology, zoology and botany of Hudson's Strait and Bay, made in 1885 - Geological; Natural History Survey of Canada. (Dawson Brothers, 1885)

Observations on the geology, zoology and botany of Hudson's Strait and Bay made in 1885 - Geological; Natural History Survey of Canada. (Dawson, 1885)

Observations sur la géologie, la zoologie et la botanique du détroit et de la Baie d'Hudson faites en 1885 - Geological; Natural History Survey of Canada. (s.n, 1885)

Occasional papers of the Museum of Zoology, University of Michigan - University of Michigan. Museum of Zoology. (University of Michigan, 1921)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1865)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1866)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1903)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1905)

Off-highway vehicle environmental impact statement and proposed plan amendment for Montana, North Dakota and portions of South Dakota, final - United States. Bureau of Land Management. Montana State Office. (U.S. Department of the Interior, Bureau of Land Management, Montana State Office, 2001)

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

The Ohio naturalist - Ohio Academy of Science. (Biological Club of the Ohio State University, 1900)

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, 1908)

The Ohio naturalist - Ohio Academy of Science. (Biological Club of the Ohio State University, 1906)

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

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

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

On the cretaceous and tertiary floras of British Columbia and the North-West Territory - Dawson, J. W., (John William), 1820 -1899 (s.n, 1883)

One hundred fifth annual report of the New York State Museum and Science service (University of the State of New York, State Education Dept, 1943)

The Ontario natural science bulletin - Wellington Field Naturalists' Club. (Wellington Field Naturalists' Club, 1907)

The Ontario natural science bulletin - Wellington Field Naturalists' Club. (Wellington Field Naturalists' Club, 1912)

Opuscula philolichenum (J. Lendemer, 2020)

The orchids in the Ottawa District : floristics, phytogeography, population studies and historical review / Joyce M. Reddoch and Allan H. Reddoch - Ottawa Field-Naturalists' Club (The Ottawa Field-Naturalists' Club, 1997)

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

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 a land flora : a theory based upon the facts of alternation - Bower, F. O. (Frederick Orpen), 1855 -1948 (Macmillan, 1908)

The origin of a land flora : a theory based upon the facts of alternation - Bower, F. O. (Frederick Orpen), 1855 -1948 (Macmillan and co., limited, 1908)

The origin of a land flora, a theory based upon the facts of alternation - Bower, F. O. (Frederick Orpen), 1855 -1948 (Macmillan and Co., Ltd, 1908)

Ornamental hardy plants of the better class : spring 1906 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1906)

Ornamental hardy trees, shrubs, plants and bulbs : fall–spring 1945–1946 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1945)

Ornamental hardy trees, shrubs, plants and bulbs : spring 1945 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1945)

Ornamental plants for immediate effects : autumn 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1936)

Ornamental plants for immediate effects : for the autumn of 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gardens of the Blue Ridge, 1937)

Ornamental plants for immediate effects for the autumn of 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1938)

Ornamental plants for immediate effects for the spring of 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1938)

Ornamental plants for immediate effects : spring 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1937)

Ornamental plants for pleasing landscape effects : price list for Autumn 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1939)

Ornamental plants for pleasing landscape effects : price-list for spring 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1940)

Die Ostsudeten; eine floristische Skizze - Hruby, Johann. (Landesdurch-forschungs-Komemission, 1914)

O.S.U. naturalist - Ohio State University. Biological Club. (Biological Club of Ohio State University, 1900)

O.S.U. naturalist - Ohio State University. Biological Club. (Biological Club of Ohio State University, 1903)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1889)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1888)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1909)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1910)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1911)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1913)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1916)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1915)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1919)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1918)

Our ferns in their haunts; a guide to all the native species - Clute, Willard Nelson, 1869 -1950 (F. A. Stokes Co, 1901)

Our ferns in their haunts a guide to all the native species - Clute, Willard Nelson, 1869 -1950 (W. Briggs, 1901)

Our ferns in their haunts; a guide to all the native species - Clute, Willard Nelson, 1869 -1950 (W. Briggs, 1901)