Popular Science Monthly, Volume 82

abalone alcohol American animals arachnids association atomic atomic weight average black abalone cells cent century characters course cultivated culture disease effect efficiency electrical Ellis Island eminent women ether evidence evolution existence experience fact forest germ grapes Harvey Henri Poincaré horse hospital human hybrid ical immigration important increase influence institutions interest investigation labor land larvæ less living maize Marine Hospital Service membrane ment mental methods modern mountain mulatto nation nature nebulæ negro nitrogen observations organic ostracoderms period permeability physical plants plasma-membrane Poincaré present problem produced Professor province of Saxony pupils quarantine question race rainfall result salt scientific shell social species substances surface Surinam Sweden Valley temperature teosinte theory tion to-day trainer tropical United vertebrates wheat Whymper writer yellow fever