Erwin Rohde 
Psyche [PDF ebook] 
The cult of Souls and the Belief in Immortality among the Greeks

First published in 2000. This is Volume VI of seven in the Library of Philosophy series on Philosophy of Religion and General Philosophy. Written around 1925, This book entitled Psyche, offers an account of the opinions held by the Greeks about the life of the human soul after death, and is thus intended as a contribution to the history of Greek religion.