National Geographic : 1943 Aug
U.S.Navy, Official Getting Thirsty on His Raft, This "Castaway" Squeezes Sea Water and Chemicals Through Filters. Presto! Fresh Water toDrink For centuries men have hunted a short cut for making drinking water from salt water by simpler means than distillation. Bythis process, perfected byLt.W.V. Consolazio of the Naval Medical Research Institute, sea water can be made fit to drink in 45 minutes, or less (page 256). Like some spring waters, ittastes ofsulphur, but is free of salts. Bags cannot get away, being tied to the man.