A 



PLATE 99. A and B. Diagrams illustrating the curvature of the spinal column in a human 

 infant (A) and an adult man (B). The curvature of the spinal column in an ape (C} resembles 

 that in the human infant. (Compare the upper figure in cut C of this plate.) C. A group of 

 gorillas, male, female, and young ; observe the position of the feet in the female and in the young 

 gorilla. From Brehm's Thierleben, 



