The physiology of the circulation in plants : in the lower animals, and in man : being a course of lectures delivered at surgeons' hall to the president, fellows, etc of the Royal college of surgeons of Edinburgh, in the summer of 1872 . the forehead, neck,forearm, back of hands and feet and anterior part of trunk, 1000 to the squareinch; and on the sole of the foot and palm of the hand, 2700 to the square observer estimated the number of sweat-glands in the body at 2,300,000 ;the amount of glandular tubing amounting to 153,000 inches, or somethinglike two and a half miles (Kolliker,
The physiology of the circulation in plants : in the lower animals, and in man : being a course of lectures delivered at surgeons' hall to the president, fellows, etc of the Royal college of surgeons of Edinburgh, in the summer of 1872 . the forehead, neck,forearm, back of hands and feet and anterior part of trunk, 1000 to the squareinch; and on the sole of the foot and palm of the hand, 2700 to the square observer estimated the number of sweat-glands in the body at 2,300,000 ;the amount of glandular tubing amounting to 153,000 inches, or somethinglike two and a half miles (Kolliker, Handbuch der Gewebelehre, Leipsic, 1852,p. 147). Lavoisier and Seguin estimate the quantity of fluid lost by cutaneousperspiration in twenty-four hours, at 13,770 grains, nearly two pounds avoirdupois(Robin and Verdeil, op. cit., vol. ii. p. 145). According to Dr Southwood Smith,labourers engaged in gasworks sometimes lose by cutaneous and pulmonary ex-halations as much as 3^ lbs. in less than an hour (Philosophy of Health, chap,xiii. ; London, 1838). The effect produced on the circulation by the extractionof such large quantities of fluid from the system must in such cases be verygreat. 110 DR J. BELL PETTIGREW ON THE Fig.
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