BIBLIOGRAPHY.
NAMES AND LOCALITIES.
"Check List of Forest Trees of the United States, their Names and Ranges," Sudworth. (U. S. Forestry Bulletin No. 17.)
FEATURES OF TREES, BOTANIES.
Prof. Sargent's "Silva of North America"; Michaux and Nuttall's "North American Silva"; Apgar's "Trees of Northern United States"; Publications U. S. Forestry Division; "Our Native Trees," Keeler; "Familiar Trees," Mathews; "Timber Trees and Forests of North Carolina," Pinchot & Ashe (N. C. Geological Survey Bulletin No. 6); "Report on Trees and Shrubs of Massachusetts," Emerson; "Manual of Botany," Gray; "Plants," Coulter; "Illustrated Flora of U. S.," Britton and Brown; etc., etc. Botanical Gazette; Guide to Trees and Shrubs of New England by their Leaves, Bradley Whidder, Boston.
COLOR, APPEARANCE OR GRAIN OF WOOD.
Jesup Collection at Museum of Natural History, New York City; Hough's American Woods (sections).
STRUCTURAL QUALITIES AND USES OF WOODS.
"Timber," Roth (Bulletin No. 10, U. S. Forestry Div.); Vol. IX, Tenth U. S. Census; Prof. Sargent's "Catalogue Jesup Collections"; Prof J. B. Johnson's "Materials of Construction"; Prof. Thurston's "Materials of Engineering," Part I; Dr. F. E. Kidder's "Inspection of Materials and Workmanship." Allusions in numerous publications U. S. Forestry Division.
WEIGHTS AND MODULI.