tures on Surgical Pathology, 1853, Vol. I, p. 71.

[33] Ueber die Richtung der Haare am menschlichen Koerper.

[34] Pop. Sci. Monthly, June, 1879, p. 250.

[35] See Sci. Am., May 18, 1878.

[36] Source of Muscular Power, Proc. Roy. Inst., June 8, 1866. Am. I.
Sci., II, xlii, 393, Nov. 1866.

[37] Comparative Zoology, p. 45.

[38] Correlation of the Vital and Physical Forces, p. 54.

[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.

[49] _Loc. cit._, p. 24.

[50] Address of Dr. F. A. P. Barnard, as retiring president, before the
Am. Ass. for Adv. of Sci., Chicago meeting, Aug. 1868. "Thought cannot
be a physical force, because thought admits of no measure."

[51] Derivation hypothesis of life and species, forming fortieth chapter
of his Anatomy of Vertebrates, republished in Am. Jour. Sci., II, xlvii,
33, Jan. 1869.

[52] Prehistoric Times, p. 354, by Lubbock.

[53] Madness in Animals, Jour. Mental Sci., July, 1871. Dr. W. L.
Lindsay.

[54] Facultes Mentales des Animaux, 1872, Tom. XI, p. 181.

[55] Primeval Man, 1869, pp. 145-147.

[56] Prehistoric Times, 1865, p. 473.

[57] "Conferences ser les Theorie Darwinienne," 1869, p. 132.

[58] Philosoph. Trans., 1773, p. 262.

[59] Prof. Whitney, p. 309.

[60] Phys. and Pathol. of Mind. Dr. Maudsley. 3d ed., 1868, p. 199.

[61] Nature, January 6, 1870, p. 257.

[62] Problems i. 21.

[63] Johnson's Cyc. Article "Faith." C. P. Krauth.

[64] Darwin's Descent of Man, p. 117.

[65] See Descent of Man, p. 96.

[66] See Tyndall's Belfast Address.

[67] Purgatory of Suicides.

[68] Thoughts on Atheism, p. 4.

[69] Monologium and Proslogium.

[70] Meditations de Primaphilosophia Prop. 2, p. 89.

[71] Demo