290 



Eeferring the moments of the hip joint muscles to the plane of the 

 brim of the acetabulum, I found — 



Muscle. 



Azimuth. 



Moment. 





Degs. 



Percentage. 





. . 20 . . . - 







. . 94 . . . . 



... 1-9 





. . 137 ... . 



. . . 15-4 



4. Obturator externus, . . 



. . 149 . . . . 



... 1'7 



5. Quadratics femoris, . . 



. . 180 . . . . 



... 1-4 



6. Obturatur internus, . . 



. . 230 . , . . 



... 22 



7. Gluteus maximus, . . 



. . 326 . . . . 



... 4'2 





. . 341 . . . . 



. . . 10-6 





. . 351 . . . . 



... 1-3 



46-7 



If these moments be resolved, as before, along the directions of 

 Flexion and Extension of the knee joint, and of abduction and adduction 

 perpendicular to it, we find — 



Muscle. 



Flexion. 



Extension. 



Adduction . 



Abduction. 





7-52 





2-73 









0-13 



1-89 









11-24 



10-50 





4. Obturator externus, . . 





1-46 



0-87 





5. Quadratics femoris. . . 





1 -40 







6. Obturator internus, . . 





1 '41 





1-68 



7. Gluteus maximus, . . 



3 '-48 







2-35 



8. „ medius, . . . . 



10*02 







3-45 



9. minimus,. . . . 



1-28 







0-20 



Totals, 



22-30 



15*64 



15-99 



7-68 



Subtracting opposite moments, we find — 



Percentage. 



1. Total flexion, ...... 6*66 



2. Total adduction, 8 '31 



3. Cynocephalus porcarius (Chacma). 



From a specimen, of this Cynocephalus, I obtained the following 

 results and measurements : — 



