Forty-seven prominent German authors have collaborated in the presentation of this volume on the subject of carcinoma. The purpose of the compilation is an exposition of the more recent concepts and the more advanced studies on cancer. Each of the various phases of carcinoma is considered in a separate article by an author interested in that particular aspect of the problem.
Professor Dietrich, in discussing the relation of trauma to the development of carcinoma, expresses the view that there has been a tendency to stress this unduly. He states that there are several factors that must work together for the production of tumor, namely, (1) disposition; (2) tumor anlage (embryonal) and (3) cell mutation. According to Professor Schultz, the cachexia associated with carcinoma is the result of autointoxication, due either to break-down products or a secretion of the carcinoma cells. The bluish stippling of the red blood cells observed in