The Popular Science Monthly, Opseg 43

agaves alternating current American ancient animals appears APPLETON archæology become body Bond Street called cause cells centimetre cents character chemistry cholera color crime disease effect electric ence existence experiments fact feet fibers fish fruit G. P. Putnam's Sons Geological geologists give glacial human hundred ical idea illustrated important Indians insane interesting kind labor less living magnetic material matter ment methods mountain natural natural selection nerve observed organs origin Oswego ovum paper patients persons phenomena plants popular practical present produced Prof protoplasm published question river says schools scientific seeds silver Society somatic cells species spirit student surface theory thousand tion trees tribes United Ural Cossacks URAL RIVER volume words World's Columbian Exposition York Yuruks