[39] On the time required for the transmission of volition and sensation through the nerves, Proc. Roy. Inst.
[40] Comparative Zoology, p. 165.
[41] Sci. Amer., Nov. 13, 1876, p. 328.
[42] Marshall, Outline of Physiology. Amer. Ed., 1868, p. 227.
[43] Macmillon's Magazine, Pop. Sci. Monthly, April, 1876.
[44] "Principles of Psychology," 1869, No. 20, p. 24.
[45] J. S. Lombard, N. Y. Med. Jour., Vol. V, 198, June, 1867.
[46] Loc. cit., p. 23.
[47] The apparatus employed is illustrated and fully described in Brown-Sequard's Archives de Phys., Vol. I, 498, June, 1868. By it the 1-4000th of a degree Centigrade may be indicated.
[48] L. H. Wood, "On the influence of mental activity on the excretion of phosphoric acid by the kidneys." Proc. Conn. Med. Soc., Nov., 1869, p. 197.