Note 4 — 7 THE ARTIFACTS OF EARLY MAN IN THE NEW WORLD
Reading edition
I. C. Russell, The Geological History of Lake Lahontan (Monograph, U.S. Geological Survey, no. 11, 1885). W. J. McGee, “An Obsidian Implement from Pleistocene Deposit in Nevada,” American Anthropologist, 2:301-312 (1889).