The Sources of Madame Blavatsky's Writings. By William Emmette Coleman; [First published in A Modern Priestess of Isis by Vsevolod Sergyeevich Solovyoff, London, Longmans, Green, and Co., 1895, Appendix C, pp. 353-366.] – http://www.blavatskyarchives.com/colemansources1895.htmArkiveret 11. december 2008 hos Wayback Machine
Det Teosofiske Samfunds Komites afgørelse på Coulomb sagens udvikling: Report of the Committee Appointed by the Annual Convention of the Theosophical Society to Advise Madame Blavatsky as the Best Course to be Taken by Her with Reference to Certain Letters Published in the September and Following Numbers of the Christian College Magazine", – http://www.blavatskyarchives.com/tsreport.htmArkiveret 20. juli 2008 hos Wayback Machine
"The Testimony of Emma Coulomb & Richard Hodgson Concerning the Appearances of the Mahatmas" – http://www.blavatskyarchives.com/coulombandhodgson.htmArkiveret 25. juli 2008 hos Wayback Machine; også "The Report of the Committee Appointed to Investigate the Phenomena connected with the Theosophical Society," Proceedings of the Society for Psychical Research, 1885, Vol. 3, No. IX, pp. 207, 209, 241, 239, 245-6, 317.
The Sources of Madame Blavatsky's Writings. By William Emmette Coleman; [First published in A Modern Priestess of Isis by Vsevolod Sergyeevich Solovyoff, London, Longmans, Green, and Co., 1895, Appendix C, pp. 353-366.] – http://www.blavatskyarchives.com/colemansources1895.htmArkiveret 11. december 2008 hos Wayback Machine
Det Teosofiske Samfunds Komites afgørelse på Coulomb sagens udvikling: Report of the Committee Appointed by the Annual Convention of the Theosophical Society to Advise Madame Blavatsky as the Best Course to be Taken by Her with Reference to Certain Letters Published in the September and Following Numbers of the Christian College Magazine", – http://www.blavatskyarchives.com/tsreport.htmArkiveret 20. juli 2008 hos Wayback Machine
"The Testimony of Emma Coulomb & Richard Hodgson Concerning the Appearances of the Mahatmas" – http://www.blavatskyarchives.com/coulombandhodgson.htmArkiveret 25. juli 2008 hos Wayback Machine; også "The Report of the Committee Appointed to Investigate the Phenomena connected with the Theosophical Society," Proceedings of the Society for Psychical Research, 1885, Vol. 3, No. IX, pp. 207, 209, 241, 239, 245-6, 317.