“…Katsch & Mellinghoff [1933] and Mellinghoff & Heuschert [1934] carried out a similar procedure and withdrew gastric contents over periods of 3 days from patients with peptic ulcer. They were able to remove up to 33 g. of sodium chloride by this means, which resulted, in their series of cases, in a diminution in the whole blood chloride of 51 mg./100 c.c.…”