The authoress has studied the characters of the pelvis in sixteen skeletons of male criminals in Lombroso's museum. In her paper she gives the details of the examination in each case, with tables summarising the results for the whole series. She finds that the pelvis in the criminal tends to approximate to the female type; and, though this type is generally admitted to be morphologically higher than the male type, she argues that the lack of sexual differentiation implied by this resemblance is to be properly regarded as an atavistic character, especially as it is in many cases associated with other peculiarities of a distinctly prehuman kind.