115 



the dead specimen undoubtedly arose from the unnatural contraction 

 of the flexor muscles, which, as we have seen, are very thick and 

 fleshy, by the spirit in which it had been preserved. My inference 

 was natural, but the facts were un7iatural. 



And it will be seen that while this structure, as it existed unnatu- 

 rally in the dead specimen, would be highly useful in climbing, it 

 would almost entirely prevent the use of the hand for any other 

 purpose. 



This correction will be added to my paper before it is bound up. 



YOUNG CHIMPANZEE — TKOGLODYTES NIGER. 



JVIEASUREMENTS (WITH TAPE). 



Level of top of head to nape of neck . - - ^ - - - 4 



" " ischiatic tuberosity to nape of neck ----- ii 



" " " " " bottom of heel ----- 9 



Height of whole body (standing- erect as possible) - - - - 2 



Greatest spread of upper extremities ------ -2 10 5 



Length of arm (from elbow to distal end of clavicle) _ . - 5 



" " forearm " " wrist ------- 5 



" " hand to tip of middle finger ------- 45 



" " each upper extremity --------125 



Breadth of shoulders between tips of clavicles ----- 55 



Circumference of head (base of superciliary ridges and occiput) 13 



From nape of neck to the crest of '' " - - - - 7 5 



" tip of chin c » » « « - - - . 4 



Width of face across orbits --------- 35 



" " inter-orbital space --------- 6 



« " mouth ----------- 3 



" " ear 17 



Length of ear --.-...---- 25 



Circumference of trunk at arm-pits ------- 15 



Lateral diameter 



5 



5 2 



fullest part ---... 6 



« " 7 



" (f -.----- 1 6 



hips -------11 



<4 ------- - 5 



Antero-posterior 

 (( ii 



Lateral diameter 

 Circumference 



Lateral diameter 



Length of first metacarpal (of thumb) ------ 12 



" " " digit (thumb) -------- 13 



" " third " (middle finger) ------- 25 



"Width "« --.- 17 



Sole of foot from heel to tip of third digit ------ 5 



" " width, including first digit standing at right angle with it 3 7 



Length of first metatarsal (of great toe) ------ l 



u u u digit ---.--.--- 15 



" " leg, from trochanter to tip of middle toe - - - - 12 



« " thigh ---- - 55 



" " leg (tibia) - - - - 5 



