Science: Watermen

For healthful and palatable drinking water, some 70,000,000 people in the U. S. are dependent on a scattered army of obscure technicians: the superintendents of urban waterworks. Last week 1,200 members of the American Water Works Association gathered in convention at Los Angeles, talked shop, complained about their pay, behaved themselves. A solemn and sober group, the waterworks superintendents are famed among hotelmen and convention solicitors for the fact that they almost never do any damage. In their convention lobby they gazed earnestly at water tinkling through complete model systems; at a scale...