Note 18 — INTRODUCTION.
Reading edition
See his essay, Remarks on the Centres of Ancient American Civilization in Central America, and their Geographical Distribution, in the Bulletin of the American Geog. Soc. No. 2, 1876.
Reading edition
See his essay, Remarks on the Centres of Ancient American Civilization in Central America, and their Geographical Distribution, in the Bulletin of the American Geog. Soc. No. 2, 1876.