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Natural history of the Andrew Lake region, northeastern Alberta - Provincial Museum of Alberta. Natural History Section. (Provincial Museum of Alberta, 1990)

Natural history of the Bistcho Lake Region, Northwest Alberta - Provincial Museum of Alberta. Natural History Section. (Natural History Section, Provincial Museum of Alberta, 1988)

Natural history of the Queen Charlotte islands, British Columbia. Natural history of the Cook inlet region, Alaska - Osgood, Wilfred Hudson, 1875 -1947 (Government Printing Office, 1901)

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)

Natural reforestation on a mile-square clearcut in southeast Alaska / by A.S. Harris - Harris, A. S. (Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1967)

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A naturalist in the Bahamas - Osborn, Henry Fairfield, 1857 -1935 (Columbia University Press, 1910)

A naturalist in the Bahamas, John I. Northrop, October 12, 1861-June 25, 1891; a memorial volume - Osborn, Henry Fairfield, 1857 -1935 (Columbia University Press, 1910)

A naturalist in the Bahamas: John I. Northrop, October 12 1861 - June 25, 1891: a memorial volume - Osborn, Henry Fairfield, 1857 -1935 (Columbia University Press, 1910)

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

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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, 1910)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 1962)

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New manual of botany of the central Rocky mountains (vascular plants) - Coulter, John Merle, 1851 -1928 (American book company, 1909)

New manual of botany of the central Rocky Mountains, vascular plants - Coulter, John Merle, 1851 -1928 (American Book Co, 1909)

The New phytologist - Tansley, A. G., Sir, (Arthur George), 1871 -1955 (Academic Press, 1914)

New species of Coleophoridae, with notes on other species (Lepidoptera) - McDunnough, James H. (James Halliday) 1877 -1962 (American Museum of Natural History, 1955)

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

Nitrogen fixation in Shepherdia canadensis (L.) nutt - University of Alberta. (University of Alberta, 1981)

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Nordamerikanische Laubmoose, Torfmoose und Lebermoose - Röll, Julius. (1893)

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

North American botany; comprising the native and common cultivated plants, north of Mexico. Genera arranged according to the artificial and natural methods - Eaton, Amos, 1776 -1842 (E. Gates, 1840)

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North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1908)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1926)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1981)

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

North American flora - New York Botanical Garden (New York Botanical Garden, 1944)

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

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 wildings from the Green Grassy Hollow - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. G. Knowlton, 1932)

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Nouveau dictionnaire d'histoire naturelle, appliquée aux arts, à l'agriculture, à l'économie rurale et domestique, à la médecine, etc (Chez Deterville, 1819)

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

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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)

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

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

Ornithological biography, or an account of the habits of the birds of the United States of America ; accompanied by descriptions of the objects represented in the work entitled The Birds of America, and interspersed with delineations of American scenery and manners - Audubon, John James, 1785 -1851 (Adam Black, 1834)

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

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1912)

Our native birds of song and beauty, being a complete history of all the songbirds, flycatchers, hummingbirds, swifts, goatsuckers, woodpeckers, kingfishers, trogons, cuckoos, and parrots, of North America - Nehrling, Henry, 1853 -1929 (G. Brumder, 1893)

Our northern shrubs and how to identify them : a handbook for the nature-lover - Keeler, Harriet L. (Harriet Louise), 1846 -1921 (Charles Scribner's Sons, 1922)

Our northern shrubs and how to identify them; a handbook for the nature-lover - Keeler, Harriet L. (Harriet Louise), 1846 -1921 (C. Scribner, 1903)

Our northern shrubs and how to identify them; a handbook for the nature-lover - Keeler, Harriet L. (Harriet Louise), 1846 -1921 (C. Scribner, 1912)

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

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Pacific yew final environmental impact statement - United States. Bureau of Land Management. (Portland, Oregon, 1993)

Palisades popular perennials : supplement of new, rare, and meritorious hardy plants 1911 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R.W. Clucas, 1911)

Pamphlets on forestry. Grazing (1900)

The Pan-Pacific entomologist - Van Duzee, Edward P. (Edward Payson), 1861 -1940 (Pacific Coast Entomological Society, 1972)

Paramount Gardens, rock garden plants exclusively - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Paramount Gardens, 1943)

The passenger pigeon in Ontario - Royal Ontario Museum of Zoology. (University of Toronto Press, 1935)

Peace parkland native grassland stewardship program 2001/02 - Alberta. Fish; Wildlife Division. (Alberta Sustainable Resource Development, Fish & Wildlife Division, Resource Data and Species At Risk Section, 2004)

Peonies, native wild flowers, rockery plants : autumn supplement to spring of 1928 catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank W. Campbell, 1928)

Perennial and rockery plants : shrubs, trees, vines, evergreens, and roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gardenside Nurseries, 1930)

Perennial plants, shrubs, trees, vines, evergreens, and roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gardenside Nurseries, Inc, 1929)

Perennial plants, shrubs, trees, vines, evergreens, and roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Gardenside Nurseries, 1928)

Perennials : deciduous trees, flowering shrubs, evergreens, hardy vines, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Muller-Sealey Co., Inc, 1924)

Perennials for all purposes : ground covers and hardy vines - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Muller-Sealey Co., Inc, 1920)

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Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1910)

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Pharmaceutical botany; a text-book for students of pharmacy and science - Youngken, Heber W. (Heber Wilkinson), 1885 -1963 (P. Blakiston's son & co, 1920)

Pharmaceutical botany, with glossary of botanical terms - Youngken, Heber W. (Heber Wilkinson), 1885 -1963 (Blakiston, 1921)

Philadelphia Medical and Physical Journal (1807)

Phytogeographic studies in the Peace and upper Liard river regions, Canada, with a catalogue of the vascular plants - Raup, Hugh M. (Hugh Miller), 1901 -1995 (Arnold Arboretum of Harvard university, 1934)