04 ANIMAL MECHANICS. 



Muscular Types of Man and Quadrumans — Foot. 





Man. 



Gorilla. 



panzee. 



dry as. 



Walking Muscles. 

 4. Tibialis posticus, .... 



20 35 



31.00 

 I.48 

 8.60 



13.68 

 8.49 



16.32 



O.48 

 9. 18 



22.52 

 17.00 

 4. 20 

 4. 20 



Grasping Muscles. 



1. Flexor digitorum longus, 



2. Flexor hallucis longus, . . 



3. Flexor digitorum brevis, . . 



4. Fl. dig. long, accessorius, . 



2. 28 

 4.82 

 I.48 ) 

 ) 



6.60 

 17.94 

 4.24 



8. 16 

 J 5-3° 

 0.58 



5- '5 

 10.88 



4.58 



Extending Muscles. 



2. Extensor digitorum longus, . 



3. Extensor hallucis longus, 



4. Extensor secundus internodii 



5. Peronseus longus, .... 



6. Peronseus brevis, .... 



7. Peronseus tertius, .... 



8. Peronseus quinti, .... 



9-94 

 3.60 



3.63 



5.53 

 3-38 

 2. 60 



10.85 



5 19 

 2.83 



7-54 

 8.02 



10. 20 

 6.12 

 3.06 



2.04 

 8.16 

 4.08 



14. 5 r 

 4.96 

 1. 71 



6. 10 

 4.19 



Small. 





IOO 



IOO 



IO 3 



IOO 



Total weight, . . 



Oz. av. 

 31 iO 



Oz. av. 

 l-OS 



Oz. av. 

 098 



Oz. av. 

 5 24 



Taking the sums of the muscles in groups, we find — 

 Muscular Types of Man and Quadrumans — Foot. 





Walking. 



Grasping. 



Extending. 



Total 

 weight. 







Per cent. 



Per cent. 



Per cent. 



Oz. av. 



I. 





62 23 



9 09 



28.68 



31. 10 



2. 



Gorilla, . . . 



36.79 



28.78 



34-43 



I.06 



3- 



Chimpanzee, . . 



42.30 



24.04 



33- 66 



O.98 



4- 



Hamadryas, . . 



47.92 



20. 61 



3L47 



5-24 



S- 



Cynomolgus, . 



40. 27 



23-53 



36. 20 



2.21 



6. 



Mandrill, . . . 



40.59 



24.54 



34.87 



5-42 



7- 



Rhesus, . . . 



44- 65 



23-43 



31.92 



5-42 



8. 



Ateles, . . 



54.96 



20. 21 



24.83 



2.82 



