Complex sentence: His anatomy of the brain and nerves, as described in his "Cerebri anatomi" of 1664, is so minute and elaborate, and abounds so much in new information, that it presents an enormous contrast with the vague and meagre efforts of his predecessors.
Split into simpler sentences: His anatomy of the brain and nerves, as described in his "Cerebri anatomi" of 1664, is minute and elaborate. It abounds in new information, and presents an enormous contrast with the vaguer efforts of his predecessors.