Quotes:Ryan, Charles James
Zirkoff, Boris
Ryan, Dr. Charles J. (1865-1949). *H. P. Blavatsky and The Theosophical Movement. A Brief Historical Sketch. Point Loma, Calif.: Theos. University Press, 1937. xiii, 369 pp. Ill.
Source: Boris de Zirkoff, «H. P. Blavatsky Collected Writings», vol. 6, p. 444