This small volume on the treatment of drug addictions is essentially an abbreviation of the "Kocainismus" by Joël and Fränkel. In addition to cocainism there are. sections on morphinism, alcoholism and the coffee, tobacco and barbital habits. For one content with a superficial view of these conditions, this work will be found useful. For those who wish an exhaustive and complete treatise, it will be a disappointment.