The Book of Nature, Volumen 1

action adverted already observed animal appears Aristotle attraction birds blood body brain called capable carbone carbonic acid cause character chiefly chyle colour common consequence consists constitutes cotyledon curious cuticle Cuvier degree denominated derived distinct doctrine earth Empedocles Epicurean Epicurus equally existence external fact faculty fibres fishes fluid gastric juice genus Greece Greek heart heat hence human hypothesis ideas insects instances instinct intelligence kind lacteals language larynx Lect lecture less Lucretius lungs mankind manner material matter means mind motion muscles muscular nature objects occasionally organs origin oxygene particles passions peculiar perfect perhaps perpetually petrifactions phænomena philosophers physiologists plants Plato possess present principle produced proof proportion putrefaction Pythagoras quadrupeds racter reason rocks secreted sensation sense skin solid species stomach substance supposed term theory thing tion traced tribes variety various vegetable vessels whence whole worms zoophytes