... must be kept as cool as possible in summer, because over-heating is a direct cause of summer diarrhea. Even breast-fed babies find it hard to resist the weakening effects of excessive heat. Records show that thousands of babies, most of whom are bottle-fed, die every year in July and August, because of the direct or indirect effects of the heat. Next in importance to right food ... — Parent and Child Vol. III., Child Study and Training • Mosiah Hall