The material in this book would hardly justify the form it takes if published in America. The material on which it is based consists of thirty-three cases of paralytic dementia and three cases of tabes in which the patients were treated by the malarial method. The results obtained are similar to those reported in the general literature. The author has no new ideas to enunciate, but attempts rather to give a running review of the literature.
Possibly this last statement should be modified by saying that he suggests a method by which the malarial blood may retain its potency for a matter of two or three days. The method is as follows: 10 cc. of pure sterile gelatin is liquefied in a water bath at 30 C. and is mixed with 2 cc. of malarial blood. The mixture is allowed to solidify, either by being left for fifteen to thirty