In the reduction of the death-rate in any age group, or even from any specific cause, there is often danger in placing too great emphasis on methods in their relation to results. This dictum may be considered as particularly true with reference to infant mortality. General improved sanitation and hygiene have shown their effects in regard to the lowering of the death-rate of infants under one year of age, in much the same ratio that has obtained in the lowering of the general death-rate as it pertains to the class of cases that might reasonably be affected by such an influence.
A marked increase or decrease in the infant death-rate during a short period of time may also be misleading. Incidents are not wanting where congratulations on a lowered death-rate have been followed by a feeling of despondency when, with apparently the same conditions and methods, the death-rate has again