Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 1987)

Pteridologist - British Pteridological Society. (The Society, 2001)

Publication - Botanical Society of America. (The Society)

Publication. Field Columbian Museum Botanical series - Field Columbian Museum. (Field Columbian Museum, 1896)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1930)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1940)

Publications of the Central States Forest Experiment Station, July 1927 through December 1949 - Central States Forest Experiment Station (Columbus, Ohio) (The Station, 1950)

The publications of the Pennsylvania chestnut tree blight commission, 1911-1913 - Pennsylvania. Chestnut Tree Blight Commission. (W. S. Ray, state printer, 1915)

Publications to January 1960 - Central States Forest Experiment Station (Columbus, Ohio) (The Station, 1960)

Pulp wood of Canada - Macoun, James Melville, 1862 -1920 (Dept. of Agriculture, 1904)

Quaestiones entomologicae - University of Alberta. Dept. of Entomology. (Dept. of Entomology, University of Alberta, 1987)

Quaker Hill Nurseries [catalog] : growers of fruit and ornamental trees, small fruits, roses, shrubs and hedging - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Quaker Hill Nurseries, 1923)

The Quarterly journal of science (J. Churchill and Sons, etc, 1865)

Quarterly journal of the Florida Academy of Sciences - Florida Academy of Sciences. (Florida Academy of Sciences, 1960)

Quarterly journal of the Florida Academy of Sciences - Florida Academy of Sciences. (Florida Academy of Sciences, 1962)

Quarterly report of the Pennsylvania Board of Agriculture - Pennsylvania. State Board of Agriculture. (Pennsylvania Board of Agriculture, 1888)

Queen Anne's county - Maryland Geological Survey. (The Johns Hopkins press, 1926)

Quercus alba, the veteran of the Ozarks - Lillibridge, William Otis, 1878 -1909 (A. C. McClurg & co, 1910)

Random notes on natural history (Southwick & Jencks, 1885)

Raptor research - Raptor Research Foundation. (Raptor Research Foundation, 1981)

Raptor research - Raptor Research Foundation. (Raptor Research Foundation, 1984)