SUIUj EItT 5S9 With the vomiting and constipation arc all the usual accompanying evidences of mechanical obstruction found in the adult-rapid loss of weight, profound depression, though not suggestive of the collapse of gangrene. With the diminished ingestion of fluids the baby presents the shrunken appearance of excessive dehydration. The urine is greatly diminished and finally almost totally suppressed. The upper abdomen is full, tense, and bulging, and is made more prominent by a marked

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... ction in the hypogastric region. The bulging mass is due to the distended stomach, made more evident by the collapsed and empty state of the howels. In cases with hypertrophy, there can be palpated a small, solid, and very freely movable tumor, above and to the right of the umbilicus. Three types of operation have been widely practised-division of the pylorus, pyloroplasty, and gastro-enterostomy. Gastro-enterostomy lias been the operation of choice of the great majority of operators, anti was performed in the eleven cases operated on by Richter. There was one operative death, and of the It) cases that recovered, one has since died. It was a typical hypertrophic stenosis. There is a universal gain in weight following the operation. None of the nine babies living shows any evidence of intestinal dis¬ turbance.