146 



ARBOREAL MAN 



FIG.; 56. THE PECTORAL MAMMARY GLAND OF Tarsius 

 spectrum. 



There is another pair of nipples on the lower part of the abdominal 

 wall. 



FIG. 57. THE PECTORAL MAMMARY GLAND OF Galeopithecus 

 volans, "WHICH is PROBABLY BOTH A^MILK-SECRETING AND 

 AN ANCHORING ORGAN. 



