146 Instinct and Intelligence 



his features were large, coarse, and devoid of 

 expression. His long arms and small head with 

 its receding forehead gave him an ape-like 

 appearance. (Fig. 16.) 



This poor lad had never been able to speak, 

 but expressed such wants, and any ideas he 

 could formulate by signs and inarticulate 

 sounds. He attached himself to persons who 

 were kind to him and followed them about 

 from place to place. His power of sight, hear- 

 ing, touch, and taste were all good ; but it was 

 impossible, notwithstanding the most patient 

 efforts to teach him to speak or do such work 

 as that of sweeping out a room. The intellectual 

 power possessed by this individual was inferior 

 to that of some of the lower animals. His 

 habits were dirty, and he was very passionate; 

 when out of temper he became violent, throw- 

 ing himself on the ground and uttering loud 

 inarticulate sounds. His general health was 

 good until he reached the age of twenty-one, 

 when he contracted disease of the lungs, from 

 which he died some twelve months later. 



After death it was found that the weight of 

 this youth's brain was under 20 ounces (the 



