PALM AND SOLE STUDIES. 



213 



away from the middle line upon either side, so that the two median 

 bilateral planes form an angle of 90 with each other. In ac- 

 cordance with the method employed in former papers, the in- 

 dividual which is on the left hand of the observer, when he con- 



FIG. 26. General pattern for all four hands of the pygopagous twins 

 This was sketched from the rather unsatisfactory studies made upon the active 

 hands of infants of two years. All four hands were of this type. 



fronts them, is designated as A ; the other, upon his right hand, B. 

 In this case Mary is A, and Margaret is B. 



I studied the palms and soles of these little girls in May, 1914, 

 within a few days of their second birthday. They were large 

 and well-developed children, but had not yet learned to walk, 



