The Popular Science Monthly, المجلد 44

American animals appear become birds called cent century cephalic index Circassian Claude Chappe course Cro-Magnon earth ethical evil evolution existence experiments fact feet fruit G. P. Putnam's Sons geological geologists give Glacial Glacial period glaciers hand heat human hundred Huxley ical Ice age idea illustrated important inches interest Jean Rey JOHN TYNDALL labor land lectures less light liquor living Macmillan means ment method miles mind moral natural North observations organism origin oyster persons plants Popular Science Monthly possession present Prof published pupils question race result rocks schools scientific side society South species surface theory things thought thousand tion Tyndall uniformitarians University valley vessel volume whip-poor-will whole woolly rhinoceros writing York