Quotes:Report on Spiritualism of the London Dialectical Society
Zirkoff, Boris
Dialectical Society. *Report on Spiritualism, of the Committee of the London Dialectical Society, together with the evidence . . . and a collection from the correspondence. London, 1871, pp. xi, 412.
Source: Boris de Zirkoff, «H. P. Blavatsky Collected Writings», vol. 3, p. 502