This book is a sort of supplement to the author's former book on the cure of the morphin habit. The author here restates his plan of gradual reduction and substitution at a certain point of solutions by rectal injection, together with the use of alkalies in the form of Vichy or the bicarbonates, and spartein as a heart tonic. Self-renunciation is an important feature of the plan, and in this the patient must be tactfully supported. Nothing, he says, can be worse than restraint or compulsory suppression. Other methods of treatment are critically discussed, and the author relates his personal experience of a suppression after twenty-five years of addiction.