In this handbook the opportunity has been taken firstly to present the waterbalance in the horny layer and the sweat secretion process with particular emphasis on their relationship to the pharmacodynamical aspects of the micro circulation and permeability of the skin. F. A. 1. THIELE was unable to witness the printing of his life-work concerning the water balance of skin, which he had compiled at the university in Nijmegen with J. W. H. MALI and G. 1. DE JONGH and D. A. REAY from Great Britain. Their contribution concentrates on evaluating the cooling function of the sweat glands with their...