This revised and enlarged edition of the standard German manual on tropical medicine and hygiene is especially welcomed, since the third edition (1930) has long been out of print. It also constitutes a posthumous tribute to Professor Reinhold Ruge, who died in 1936 during the preparation of the new edition. Drs. Nauck and Vogel are new collaborators, whose original contributions respectively in tropical pathology and helminthology entitle them to write with considerable authority. Prof. Erich Martini has taken over the sections on venomous animals and arthropods.
The volume is divided into nine sections in addition to a preliminary chapter on tropical hygiene and one on examination of the blood, both of which were written by Professor Ruge. Section I is entitled "Infektionskrankheiten" and contains a long chapter on malaria (Mühlems, Nauck) and shorter chapters on diseases due to trypanosomes (Ruge), leishmaniasis (Mühlens), amebic dysentery (Mühlens), spirochetosis (Mühlens) and virus diseases,