This is an unsuccessful attempt to make out that the medical treatment of gallstones is far superior to the surgical treatment in all except a very small number of selected cases. The author became convinced of this through his own experience. After having tried medical treatment in vain, he was about to submit to a surgical operation, when the gallstones passed and he was relieved. This, to his mind, was convincing proof of the superiority of medical to surgical treatment. About four-fifths of the book is taken up with a hasty and somewhat superficial discussion of the etiology, symptomatology and diagnosis of gallstones, and only about twenty pages are occupied with the discussion of the medical treatment. There is nothing new in his therapy.