The Society for Psychical Research Scandal

H.P. Blavatsky got in trouble with the SPR. These are some links to relevant sources.

The Book of Dzyan - Tim Maroney's new book on Blavatsky and the relationship between occultism and horror fiction contains an analysis of the Hodgson report.
The Coulomb Conspiracy Against Theosophy - Chapter 13 of H. P. Blavatsky and the Theosophical Movement by Charles J. Ryan. A vigorous attack on Coulomb.
H. P. Blavatsky and The Society for Psychical Research - A defense of Blavatsky, by Grace F. Noche.
H. P. Blavatsky and the SPR - A critique of the Hodgson report by Vernon Harrison.
Obituary: the "Hodgson Report" on Madame Blavatsky - Another Blavatsky defense, by Theosophist Walter A. Carrithers, Jr. ("Adlai E. Waterman"), 1963.
Society for Psychical Research - Information about the society, contact information and schedules of forthcoming lectures and study days.