National list of scientific plant names - United States. Soil Conservation Service. (U.S. Dept. of Agriculture, Soil Conservation Service, 1982)

The National nurseryman : for growers and dealers in nursery stock - American Association of Nurserymen. (National Nurseryman Pub. Co.], 1917)

The National nurseryman : for growers and dealers in nursery stock - American Association of Nurserymen. (National Nurseryman Pub. Co.], 1920)

The native flora of the vicinity of Cold Spring Harbor, L.I., New York - Grier, Norman McDowell 1890 -1951 (1925)

Native hardy trees, shrubs, perennials and ferns - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.M. Crayton & Sons, 1937)

Native North American ferns and wild flowers for fall, 1929, planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George D. Aiken, 1929)

Native North American ferns and wild flowers for fall, 1930, planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George D. Aiken, 1930)

Native North American ferns and wild flowers for fall, 1931, planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George D. Aiken, 1931)

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

Native plants, 1878-1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gillett's Fern and Flower Farm, Inc, 1935)

Native trees, shrubs and woody vines growing in Granby, Conn., and vicinity [list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. ([Irving Holcomb], 1925)

Native trees, shrubs and woody vines growing in Granby, Conn. and vicinity - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Irving Holcomb, 1922)

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)

Natural area inventory of Hyde County, North Carolina - North Carolina. Coastal Energy Impact Program. (North Carolina Coastal Energy Impact Program, Office of Coastal Management, North Carolina Department of Natural Resources and Community Development, 1982)

Natural area inventory of Pamlico County, North Carolina - North Carolina. Coastal Energy Impact Program. (North Carolina Coastal Energy Impact Program, Office of Coastal Management, North Carolina Department of Natural Resources and Community Development, 1982)

Natural area inventory of Pender County, North Carolina - North Carolina. Coastal Energy Impact Program. (North Carolina Coastal Energy Impact Program, Office of Coastal Management, North Carolina Dept. of Natural Resources and Community Development, 1982)

Natural area inventory of Washington County, North Carolina - North Carolina. Coastal Energy Impact Program. (North Carolina Coastal Energy Impact Program, Office of Coastal Management, North Carolina Department of Natural Resources and Community Development, 1982)

Natural areas inventory, Gates County, North Carolina - North Carolina. Coastal Energy Impact Program. (North Carolina Coastal Energy Impact Program, Office of Coastal Management, North Carolina Dept. of Natural Resources and Community Development, 1982)

Natural areas inventory of Carteret County, North Carolina : for the North Carolina Natural Heritage Program, Coastal Natural Area Inventory Project - North Carolina. Coastal Energy Impact Program. (N.C. Coastal Energy Impact Program, Office of Coastal Management, N.C. Dept. of Natural Resources and Community Development, 1983)

Natural areas of the Chesapeake Bay Region: ecological priorities (1974)

Natural history - American Museum of Natural History (American Museum of Natural History, 1981)

The natural history and topography of Groton, Massachusetts - Green, Samuel A. (Samuel Abbott), 1830 -1918 (J. Wilson and Son], 1912)

Natural history of New York - Hall, James, 1811 -1898 (D. Appleton & co. and Wiley & Putnam, 1843)

Natural history of New York (D. Appleton, 1842)

A natural history of the British Lepidoptera : a text-book for students and collectors - Tutt, James William, 1858 -1911 (S. Sonnenschein, 1907)

The natural history of the Toronto region, Ontario, Canada - Glenny, George, 1793 -1874 (Pub. by the Canadian institute, 1913)

The natural history of the Toronto region, Ontario, Canada - Glenny, George, 1793 -1874 (Canadian Institute, 1913)

The Natural history of the Toronto Region, Ontario, Canada - Faull, J. H. (Joseph Horace), 1870 -1961 (Canadian Institute, 1913)

Le Naturaliste canadien - Provancher, L. (Léon), 1820 -1892 (Éditions, l'Ardoise [etc.], 1871)

Le Naturaliste canadien - Provancher, L. (Léon), 1820 -1892 (Éditions, l'Ardoise [etc.], 1891)

A nature calendar; a record of the appearance of the flowers and birds - Thompson, Thomas Edward (The Morse Company, 1896)

Nature's garden : an aid to knowledge of our wild flowers and their insect visitors... - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Grosset & Dunlap, 1900)

Nature's garden; an aid to knowledge of our wild flowers and their insect visitors - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday, Page, 1900)

Nature's garden : an aid to knowledge of our wild flowers and their insect visitors - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday, Page, 1900)

Nature's garden : an aid to knowledge of our wild flowers and their insect visitors - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday, Page, 1901)

Nature's garden; an aid to knowledge of our wild flowers and their insect visitors - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday, Page & Co, 1922)

Nature's garden; an aid to knowledge of our wild flowers and their insect visitors - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday, Page & Company, 1905)

Nature's garden; an aid to knowledge of our wild flowers and their insect visitors - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Doubleday, 1920)

Nature's garden : With many color illustrations - Doubleday, Nellie Blanchan DeGraff, 1865 -1918 (Garden City Pub. Co, 1900)

New 1932 crops - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Conyers B. Fleu, Jr, 1932)

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)

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's rarities discovered - Tuckerman, Edward, 1817 -1886 (1860)

New-England's rarities discovered in birds, beasts, fishes, serpents, and plants of that country - Tuckerman, Edward, 1817 -1886 (W. Veazie, 1865)

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

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

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, 1916)

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, 1919)

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, 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, 2000)

NHS news - Northwest Horticultural Society. (Northwest Horticultural Society, 1989)

NHS news - Northwest Horticultural Society. (Northwest Horticultural Society, 1990)

The North American cup-fungi (inoperculates) - Seaver, Fred Jay, 1877 -1970 (1951)

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)

The North American Pyrenomycetes. A contribution to mycologic botany - Everhart, B. M. (Benjamin Matlack), 1818 -1904 (Ellis & Everhart, 1892)

North American wild flowers - Walcott, Mary Vaux, 1860 -1940 (Smithsonian Institution, 1925)

Notable flowers to brighten your garden, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bristol Nurseries, Inc, 1935)

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 Connecticut. Second series - Driggs, Alfred Waldo, 1875 - (State Board of Education, 1902)

Notes on the spring flora of southwestern Virginia - Hogg, Thomas, 1771 -1841 (s.n, 1890)

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

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)

Novitates zoologicae : a journal of zoology in connection with the Tring Museum - British Museum (Natural History) (Zoological Museum, 1903)

The nursery-manual; a complete guide to the multiplication of plants - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1920)

[Nursery stock brokerage list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1928)

Nursery stock of distinction, complete landscape department : price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Westminster Nurseries, 1943)

Nursery stock of distinction, complete landscape department - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Westminster Nurseries, 1938)

Nursery stock of distinction, complete landscape department : price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Westminster Nurseries, 1948)

Nursery stock of distinction, complete landscape department : price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Westminster Nurseries, 1947)

Nursery stock of distinction, complete landscape department - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Westminster Nurseries, 1940)

Oak Park Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oak Park Nurseries, 1947)

Oak Park Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oak Park Nurseries, 1948)

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

Oesterreichische botanische Zeitschrift (A. Skofitz, 1866)

Offer #13 : Oct. 13th, 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1928)

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, 1907)

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)

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

Old Colony Nurseries Incorporated [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Old Colony Nurseries, 1914)

Old Colony Nurseries Incorporated [catalog] : 1840-1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Old Colony Nurseries, 1915)

Old friends and new catalogue : trees, flowers, fruits fall, 1920 and winter, 1920-1921 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hicks Nurseries, 1920)

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

The Ontario natural science bulletin - Wellington Field Naturalists' Club. (Wellington Field Naturalists' Club, 1909)

Opuscula philolichenum (J. Lendemer, 2006)

Opuscula philolichenum (J. Lendemer, 2007)

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

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

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

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1887)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1890)