Note 238 — Chapter IX
Reading edition
For a valuable account of stone implements of the “Potomac-Chesapeake Tidewater Province,” see paper by W. H. Holmes in Fifteenth Ann. Rept. Bu. Eth.; also, “The Obsidian Mines of Hidalgo, Mexico,” by the same author, American Anthropologist, vol. ii., No. 3, N. S.