Quotes:Agassiz, Louis

Zirkoff, Boris

Agassiz, Jean Louis Rudolphe (1807-1873). *Principles of Zoology, etc. In collab. with Augustus A. Gould. Boston: Gould, Kendall and Lincoln, 1848. Subs, ed., 1851, 1856, 1873.

Source: Boris de Zirkoff, «H. P. Blavatsky Collected Writings», vol. 5, p. 369