This is a report of the transactions of the twelfth annual meeting of the German Society for Study of the Circulation, which has 517 members. Since there were thirty-three presentations at the aforementioned meeting, all of which are printed in this volume, it is obviously impossible to give more than a scanty review of the contents. The chief subjects presented in this collection of individual articles are electrocardiography and cardiac failure. There are twenty-one presentations on electrocardiography, including such diverse subjects as "A new cathode ray electrocardiograph," "Electrocardiography in gun shot wounds of the heart," "The conduction system in auricle and ventricle, particularly in horses" and "On the question of injury of heart muscle in diabetic coma.'"
There is a symposium on "therapy of heart failure" which includes presentations of the physiologic and of the pharmacologic aspects of heart failure, as well as an extensive article by Volhard on treatment.