Published in many books on "Jack the Ripper", such as:
Rumbelow, Donald (1979) The complete Jack the Ripper, W.H. Allen & Co., ISBN 9780352398635, p. 96
Evans, Stewart P.; Skinner, Keith (2000). The Ultimate Jack the Ripper Sourcebook: An Illustrated Encyclopedia. London: Constable and Robinson. ISBN 1841192252, between pages 116 and 117