This work is an attempt to show by statistics that the preventive measures adopted in the British army, especially in India, have been effective in lessening the amount of syphilis. The author gives a general survey of the conditions in military life which tend to increase the prevalence of venereal disease. The methods of dealing with syphilis by themedical men of the army are given with suggestions as to how these methods can be made more effective for the prevention of the disease. The latter half of the book is taken up with a series of statistical tables which go to prove in the author's opinion the good effects of regulation of prostitution. Whether one agrees with this conclusion or not, the tables ought to be of value, as they represent a considerable amount of research.