Footnotes:
[1] The Law of Disease, in College Courant, Vol. XIV.
[2] Winchell. Evolution, p. 113.
[3] Comparative Zoology, p. 43. 1876.
[4] Huxley. Physical Basis of Life.
[5] Johnson, Ency.
[6] Comparative Anatomy—Orton, p. 32.
[7] Analytical Anatomy and Phys.—Cutter, p. 16.
[8] Biography of a Plant.