In 1935, Rosenheim3 published an article in which he reported a study of the successful use of mandelic acid as a urinary antiseptic. Since that time several such studies have been made, 4 and the treatment is successful in most of the cases reported. There seems to be, however, one objection to it: namely, that the dosage required is larger than desirable, and that in consequence the treatment is in some cases accompanied by considerable ...