The Book of Nature

action adverted already observed amphibials animals appears Aristotle atmosphere attraction birds blood body bones brain called capable carbon carbonic acid character chiefly chyle colour common consequence consists constitutes cotyledon curious cuticle Cuvier degree denominated distinct doctrine earth Empedocles Epicurus equally existence fact faculty fibres fishes fluid gastric juice genus Greek heat hence hippopotamus human Humphry Davy hypothesis ideas insects instances instinct intelligence kind lacteals language larynx lecture less Linnæus living Lucretius lungs mankind manner material matter means mind molluscous motion muscles muscular nature occasionally organs origin oxygen particles peculiar perfect perhaps perpetually petrifactions philosophers physiologists plants Plato possess present principle produced proof properties proportion proved putrefaction Pythagoras quadrupeds racters reason secreted sensation skin solid species stomach substance supposed surface term theory thing tion traced tribes variety various vegetable vessels whence whole worms zoophytes