Biology: With Preludes on Current Events

according action activities adequate affirm agent animal appears Applause arcs assert authority automatic Beale believe bioplasts body Boston brain cause cell clear Dana death definition direct distinction Divine doctrine effect established evolution existence explain external eyes face fact force gentlemen German give Häckel hand hold human hundred Huxley idea immortality influential kind knowledge known LECTURE light living living tissues logical look Lotze mass material matter means mechanism mental microscope mind motion movements moves natural nerve nervous never once organism origin philosophy physical Physiology political portion present produce Professor properties prove relations religious result scientific sense sets side soul spiritual stand structure substance suppose theory thing thought tion tissues truth Tyndall universe weave whole