The other confirmatory experiments were carried out at Basel where the string galvanometer was conveniently accessible for counting the pulsea process not always easy when the patient is shivering. There a bed was placed with an ample supply of bed-clothes. Each experiment was divided into three periods.Period I. The subject of the experiment was naked and lay in comfort covered with the bed-clothes until his pulse became steady.Period II. The bed-clothes were then removed. He was exposed for about half an hour to the cold, his pulse rate and his rectal temperature being observed at frequent intervals. The
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