Quotes:Ginsburg, Christian David
Zirkoff, Boris
Ginsburg, Christian D. (1831-1914). *The Kabbalah: Its Doctrines, Development, and Literature. London: Longmans,Green, etc., 1865; also Geo. Routledge & Sons, 1925.
Source: Boris de Zirkoff, «H. P. Blavatsky Collected Writings», vol. 7, p. 373
Ginsburg, Christian David (1831-1914). *The Kabbalah: Its Doctrines, Development, and Literature. An Essay. London: Longman, Green, etc.; Liverpool: D. Marples, 1866. 8vo. [issued as Appendix to Proceedings of the Literary and Philosophical Society of Liverpool, No. XIX.]
Source: Boris de Zirkoff, «H. P. Blavatsky Collected Writings», vol. 8, p. 438