Logic in Three Books of Thought, of Investigation and of Knowledge, in Two Volumes (Clarendon Press Series)

Two volume set. Lotze was a logician with a medical degree, who proposed the theory of teleological idealism and the principle of teleomechanism. "Rudolf Hermann Lotze (21 May 1817 – 1 July 1881) was a German philosopher and logician. He also had a medical degree and was well versed in biology. He argued that if the physical world is governed by mechanical laws, relations and developments in the universe could be explained as the functioning of a world mind. His medical studies were pioneering works in scientific psychology."