When doctors disagree what are we laymen to do? We can take an intelligent interest in the inquiries that are now being made by city, state, and national governments. Because everybody believes that clean milk is safer than unclean milk, that milk at 50 degrees will not breed harmful germs, we can demand milk inspection that will tell our health officers and ourselves which dealers sell only clean milk at 50 degrees and never more than 60 degrees, that never shows over 100,000 colonies to the cubic centimeter. We can get our health departments to publish the results of their scoring of dairies and milk shops in the papers, as has been done in Montclair. We can tell our health officers that the best results in fighting infant mortality are at Rochester, which city, winter and summer, by inspection, correspondence, and punishment, educates farmers and dealers in cleanliness, not only censuring when dirty or careless, but explaining how to make more money by being clean. Finally, mothers can be taught at home how to cleanse the bottles, the nipples, all milk receptacles, and all things in rooms where milk is kept. Absolutely clean milk of proper temperature _at the shop_ may not safely be given to a baby in a dirty bottle. Infant milk depots, pasteurization, the best medical and hospital care, breast feeding itself, cannot prevent high baby mortality if mothers are not clean. The most effective volunteer effort for pure milk is that which first makes the health machinery do its part and then teaches, teaches, teaches mothers and all who have to do with babies. [Illustration: NEITHER PASTEURIZATION NOR INSPECTION CAN MAKE IT SAFE TO SELL "DIP MILK" UNDER SUCH UNCLEAN CONDITIONS]