At first thought, urinary stone and especially stone in the kidney is a subject pertaining to adult life. The discovery of the condition, especially of renal stone, in an infant or small child provokes an additional interest and concern owing as well to the tender age of the patient as to its comparative rarity of discovery before death.
Our chief sources of light on this subject are to be sought in the recent reviews, more especially of the German and French. In earlier literature the treatment of the subject has been with reference to older children, including those up to 15 years of age. In some of our modern text-books, no mention is made of renal stone in infants; in some others, the subject is given scant attention. Stone in the bladder and gravel in the urine occupy places in the literature extending many years back, the treatment by medicinal