The causes of infant mortality are always living questions with the medical profession. Why so much incipient human life is destined to be an early failure is one of the most important problems that confronts us. Many of the reasons for this are obvious, but there are still factors that escape us, either from defective observation or because of peculiar difficulties of their detection. What is required more perhaps than anything is a reliable, complete and uniform system of reporting vital statistics so that we can have the exact facts for which we must account. With this desideratum a careful study of environmental and other conditions and a comparison of the findings in different localities showing different morbidity and mortality ratios could hardly fail to be instructive.
An interesting investigation of the sort by Dr. Louis C. Ager appears in the Brooklyn Medical Journal for February. Dr. Ager compares the