The relation of Valsa Kunzei to cankers on conifers - Waterman, Alma M. (Alma May),‏ ‎ 1893 - (Northeastern Forest Experiment Station, Forest Insect and Disease Laboratory, 1955)

Relative abundance and habitat relationships of Clethrionomys rutilus in the south-central Yukon Territory - Beare, Stephen S. (University of Alberta, Dept. of Zoology, 1984)

Remote sensing for brush encroachment : landsat monitoring of brush encroachment in fescue grasslands of southwest Alberta - Alberta Remote Sensing Center. (Alberta Remote Sensing Center, 1984)

Report - United States. Forest Pest Management. (USDA Forest Service, Forest Pest Management)

Report of the Alberta Endangered Species Conservation Committee - Alberta Endangered Species Conservation Committee. (Alberta Environment, 2006)

Report of the Minister of Lands and Forests of the Province of Ontario - Ontario. Dept. of Lands; Forests. (Published by Clarkson W. James, 1967)

Report of the Minister of Lands and Forests of the Province of Ontario - Ontario. Dept. of Lands; Forests. (Published by Clarkson W. James, 1971)

Report of the Minister of Lands and Forests of the Province of Ontario - Ontario. Dept. of Lands; Forests. (Published by Clarkson W. James, 1965)

Report of the Northern Great Plains Field Station for the 10-year period, 1913-1922, inclusive - Stephens, John Morman, 1879 - (U.S. Dept. of Agriculture, 1925)

Report on a cooperative seed & cone insect survey in the Northeastern Region, 1963-64 - United States. Forest Service. (Forest Service, USDA, 1965)

Report on the forests of North America (exclusive of Mexico) - Sargent, Charles Sprague, 1841 -1927 (Govt. print. off, 1884)

Report on the forests of North America (exclusive of Mexico) - Sargent, Charles Sprague, 1841 -1927 (G.P.O, 1884)

Report on the forests of North America, exclusive of Mexico - Sargent, Charles Sprague, 1841 -1927 (Govt. Print. Off, 1884)

Research accomplishments - United States. Forest Service. (1969)

Research accomplishments - United States. Forest Service. (1970)

Research accomplishments - United States. Forest Service. (1971)

Research natural areas in Colorado, Wyoming, Nebraska, North Dakota, South Dakota, and parts of Wyoming - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1994)

Resource management report - Ontario. Fish; Wildlife Branch.

Response of barley, field pea, canola and tree seedlings to ethylene exposure : Alberta's ethylene/crop research project : report III - Alberta Research Council. (Alberta Research Council, 2001)

Retail price list : fall, 1938–spring, 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.H. Small & Sons, 1938)

The Review of applied entomology. Series A, Agricultural - C.A.B. International. Bureau of Crop Protection (Commonwealth Agricultural Bureaux, etc, 1917)

Revised checklist of New York State plants - Mitchell, Richard S., 1938 - (University of the State of New York, State Education Dept, 1997)

Revision of Phoenicocoris Reuter with descriptions of three new species from North America and a new genus from Japan (Heteroptera, Miridae, Phylinae) - Schwartz, Michael D. (American Museum of Natural History, 2004)

A revision of the North American species of buprestid beetles belonging to the tribe Chrysobothrini - Fisher, Warren Samuel, 1878 -1971 (U.S. Dept. of Agriculture, 1942)

Revue bryologique et lichenologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1952)

Rhizome recruitment of Calamagrostis canadensis into mounds created for tree seedling establishment : final report 1997 - Alberta. Alberta Environmental Protection. (Alberta Environmental Protection, 1997)

The rhizosphore and plant growth : information, program, and abstract : May 8-11, 1989 Beltsville Agricultural Research Center, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, Maryland - Beltsville Agricultural Research Center. (s.n.], 1989)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1915)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1930)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1932)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1934)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1935)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1938)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1939)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1942)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1953)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1949)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1950)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1951)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1956)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1963)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1966)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1970)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1973)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1974)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1975)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1976)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1978)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1979)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1980)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1981)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1982)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1984)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1985)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1986)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1987)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1989)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1990)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1991)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1995)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1996)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1997)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1998)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 2000)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 2002)

Rock plants and perennials : 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Logan Nurseries, 1932)

The romance of our trees - Wilson, Ernest Henry, 1876 -1930 (Doubleday, Page, 1920)

Roosevelt wild life bulletin ... of the Roosevelt Life Forest Experiment Station of the New York College of Forestry at Syracuse University - New York State College of Forestry at Syracuse University. Roosevelt Wild Life Forest Experiment Station. (The University, 1939)

Roosevelt wild life bulletin ... of the Roosevelt Life Forest Experiment Station of the New York College of Forestry at Syracuse University - New York State College of Forestry at Syracuse University. Roosevelt Wild Life Forest Experiment Station. (The University, 1940)

Root characteristics of some important trees of eastern forests : a summary of the literature - United States. Forest Service. Eastern Region. (Eastern Region, Forest Service, U.S. Dept. of Agriculture, 1980)

Root dipping of conifer seedlings shows little benefit in the northern Rocky Mountains - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1994)

Rooting habits of selected commercial tree species of the eastern United States : a bibliography - Every, Leanne. (G.P.O, 1980)

Rosedale Nurseries, 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rosedale Nurseries, 1933)

Rosedale Nurseries, Inc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rosedale Nurseries, Inc, 1959)

Roses and shrubbery - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Port Stockton Nursery, 1953)

Sargentia :a continuation of the contributions from the Arnold Arboretum of Harvard University - Arnold Arboretum. (The Arnold Arboretum of Harvard University, 1943)

Sargentia :a continuation of the contributions from the Arnold Arboretum of Harvard University - Arnold Arboretum. (The Arnold Arboretum of Harvard University, 1947)

Saskatoon Island Provincial Park management plan - Alberta. Alberta Environmental Protection. Natural Resources Service. (Alberta Environmental Protection, Natural Resources Service, 1998)

Saxton & Wilson, 1947 : growers of distinctive hardy plants, successors to Wm. Borsch and Son - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Saxton & Wilson, 1947)

The Scientific basis for conserving forest carnivores : American marten, fisher, lynx, and wolverine in the western United States - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1994)

Season of 1917-18 [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Leonard Coates Nursery Company (Incorporated), 1917)

Seedlings - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Nordstrom Nurseries, 1950)

Seeds for nurserymen : April, 1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1949)

Seeds for nurserymen : April, 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1950)

Seeds for nurserymen : January, 1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1949)

Seeds for nurserymen : January, 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1950)

Seeds for nurserymen : January, 1951 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1951)

Seeds for nurserymen : March, 1957 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1957)

Seeds for nurserymen : November, 1944 : holiday gifts, consult our book list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1944)

Seeds for nurserymen, November, 1946 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1946)

Seeds for nurserymen : October, 1944 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1944)

Seeds for nurserymen : October, 1948 : wholesale only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1948)

Seeds for nurserymen : October, 1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1949)

Seeds for nurserymen : September, 1947 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, 1947)

Seeds for the nurseryman and forester : 1952-1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.W. Schumacher, 1952)

Seeds for the nurseryman and forester : 1956-1957 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.W. Schumacher, 1956)

Seeds for the nurseryman and forester : 1957-1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.W. Schumacher, 1957)

Seeds for the nurseryman and forester : 1958-1959 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.W. Schumacher, 1958)

Seeds of rare plants : Offer 23 C - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1935)

Seeds of rare plants : Offer no. 23 B - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1935)

Seeds of rare plants : offer no. 25 B - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1935)

Seeds of rare plants : offer no. 27B - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1937)

Seeds of rare plants : offer no. 27C - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1937)

Seeds of rare plants : offer no. 27D - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1937)

Seventh report : National Steering Committee for Management of Western Defoliators - United States. Forest Pest Management. (USDA Forest Service, Forest Pest Management, 1994)

sheng tai hua xue qian yan - kong chui hua lou yong gen (gao deng jiao yu chu ban she, 2010)

A short guide to the best varieties of evergreens, shade trees, shrubs, forestry seedlings, transplants, etc. : with special quantity prices applying for the spring of 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.W. Kelsey Nursery Company, 1929)

A short guide to the best varieties of evergreens, shade trees, shrubs, forestry seedlings, transplants, etc. : with special quantity prices applying for the spring of 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kelsey Nursery Service, 1930)

A short guide to the best varieties of evergreens, trees, shrubs, vines, fruit, perennials, etc., in small sizes as well as large, with special prices for spring 1947 : catalog no. 140 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F.W. Kelsey Nursery Co, 1947)