An Unsolved Mystery - A Short Story by Blavatsky Describes Cagliostro's Presence in Paris in 1861 [from 'Spiritual Scientist' Vol III November 25 1875 pp. 133-135] [and a notes and Letter to Editor by Boris de Zirkoff in 'Spiritual Scientist' (next issue) December 2 1875 p. 151; p. 147]