[590] According to Lombroso, all who are tattooed on the back or the sexual organs have without exception either been among the Pacific Islands or sojourned in a prison.

[591] A paper by Dr. J. N. Hall on “The Medico-Legal Value of Powder-Stains in Gunshot Wounds,” with a report of cases, may be found in the Transactions of the Colorado Medical Society, 1890, xx., 94.

[592] Bulletin de l’Acad. de Méd., 17 janvier, 1853, t. xviii., p. 348.

[593] La Escula de Medicina, Mexico, 1880-81.

[594] Lyon Medical, 1880.

[595] Med. Press and Circular, May 30th, 1888, p. 576.

[596] Phil. Trans., B., 1891.

[597] See Proc. Royal Soc., London, May 28th, 1891. A medico-legal study of imprints may also be found in Archiv d’Anthropologie Criminel, 15th July, 1891.

[598] See Annual of the Universal Medical Sciences, 1888, vol. v., pp. 143-147.

[599] See paragraph II., General Orders No. 33, Adjutant-General’s Office, April 1st, 1889.