Blackwell's Island Penitentiary, New York: (left) prisoners are walking in a long file leaving spoons in a bowl as they go past; (right) prisoners stand in line to receive a loaf of bread. Wood engraving by W.J. Palmer, 1876, after F. Régamay.

Licence: Public Domain Mark

Credit: Blackwell's Island Penitentiary, New York: (left) prisoners are walking in a long file leaving spoons in a bowl as they go past; (right) prisoners stand in line to receive a loaf of bread. Wood engraving by W.J. Palmer, 1876, after F. Régamay. Wellcome Collection. Source: Wellcome Collection.