Edited sentence: He gives detailed exercises in developing the mind, memory, voice and eyes, exercises in nervous system control and much else.In addition to what may today be regarded as wild, fantastical or destructive views, Ralston/Edgerly/Shaftesbury has material which some people may find quite useful in their search for self-mastery.These are written in detail, in a highly motivational style and contain viewpoints and methods scarce to find elsewhere