The Guide to Health, Dr. H. Teter, 1860

The most dreadful consequences follow drinking cold water in hot weather, while the pores are open, or when in copious perspiration. Spasms, convulsions and death often follow quickly.

The hands and the face should be washed or bathed before any cold water is drank, and then a small quantity only taken at a time. Let it also be held in the mouth a few minutes before it is drank.