PLATE 3 



EXPLAXATIOX OF FIGURES 



Two degrees of duplicity in luiman individuals. The upper photograph 

 illustrates a doubled condition extending superficially only to below the shoulders, 

 but internally the doubleness extends to the sacrum in the skeleton and to the 

 lower ileum in the intestine. The lower photograph shows two complete babies 

 extensively united by their ventral walls. 



In both of these specimens the components are of equal size and their struc- 

 tures arc normal throughout. In all specimens of human duplicities examined or 

 found recorded in which the components were of etiual size they were both struc- 

 turally normal. 



270 



