From about July 1944 to about September 1944, experiments were conducted at the Dachau concentration camp to study various methods of making sea water drinkable. At one point, a group of roughly 90 Roma were deprived of food and given nothing but sea water to drink by Dr. Hans Eppinger, leaving them gravely injured.[11] They were so dehydrated that others observed them licking freshly mopped floors in an attempt to get drinkable water.[17]