First published in 1999. This is Volume II of six of a series on Anthropology and Psychology. Written in 1927, this book looks the connection between religious practice and belief on the one hand, and instinct together with other original or innate f tendencies ' of a more individual character on the other. The ideas presented are that the widespread phenomena of religion, both in connection with practice and belief, might be connected with original tendencies not directly, as immediate, distorted or sublimated expressions of their operation either singly or in co-operation, but indirectly, as the result of their failure to function in the presence of an ever increasing discrimination of features in the environment which provided no adequate stimulus to them.