The Book of Nature, Volume 1

acid action already observed animal animal and vegetable appears Aristotle Aristoxenus arteries atmosphere atoms attraction birds blood bodies bones capable carbone carbonic acid cause chiefly ciple common compound conceived consequence consists constitutes cotyledon curious degree denominated distinct doctrine earth elementary Empedocles Epicurus equally eternal existence fibres fishes fluid formation gastric juice gneiss gravitation harmony heat heavens hence infinite divisibility insects instances irritability kind lacteals laws Lect lecture less light lime Lucretius manner mass material matter means mineral minute motion muscles muscular nature organs origin oxyde oxygene particles peculiar perfect perhaps perpetually petrifactions phænomena Phil philosophers plants Plato porphyry possessed pounds weight present principle produced properties proportion Pythagoras quadrupeds radicles rocks seeds skin solid species stomach substance supposed surface theory thing tion traced tree tribes variety various veins vessels visible whence whole worms zoophytes Ζεὺς