Natural Law in the Spiritual World is a collection of essays not originally intended for publication but rather to help the writer get things clear in his own mind. Although written from the point of view of someone in the pay of a Scottish Presbyterian Church which still clings to a belief in the absolute authority of the King James Authorised Version of the Christian Bible, Dr. Drummond's words can be read with benefit by anyone, regardless of race or religion, because they stimulate discussion about matters which remain contentious and afford the unconstrained modern scientific mystic plenty of opportunity for further clarification.