Pl.ATF. 100. A. Foot position of a human infant. From Romanes' Darwin and After Dar- 

 'i'in, by the courtesy of The Open Court Publishing Company. />'. Two human infants, ten and 

 thirtriMi days old respectively, supporting; their weisjht by their liands. From a photograph by 

 Dr. Louis Robinson, by the courtesy of The Open Court Publishing Company. 



