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action animals apparatus appears atoms attraction become Berzelius birds body carbonic acid cause centimetres character chemical chemistry chloroform clairvoyance colors compound radicles density deposits depth discovered doctrine doctrine of Equivalents dualistic dust earth eggs ether evolution evolution philosophy existence experiments fact feel feet fossil geological globe Goethe heat human hundred inch increase influence interest investigations Italian bees large number less light Lyell magnetic means ment method metres miles mind molecule moral morphia Mosso mountains natural nest Newton northern shrike objects observations organ Origin of Species oxide oxygen pass persons pharmacy phenomena phlogiston physical Pikermi plants present principles produced Professor Quaternary question radicles regard regions remarkable researches Sainte-Marie-du-Mont says Schiehallion scientific seeds sense sleep somnambulism somnambulists sound-post Spencer stalagmite supposed surface temperature theory tion trace trees