370 ANIMAL MECHANICS 



is inserted into the top and outer side of the great trochanter, 

 in front of the Glutceus secundus (j3). Its form is shown in 



Fig. 96. 



Fig. 96, where AB is the origin, and A'B' the insertion of 

 the muscle. By dividing the angle AOB into five equal 

 parts, I found the following measurements : — 



Lion — Glutceus tertius. 



Angle. 



l-V 



I cos 9 



I' cos 9 



o° 



3 



30 in. 



4. 02 in. 



1 02 in. 



10 



3 



50 „ 



4-47 „ 



1.08 „ 



20 



4 



04 >, 



5-*5 „ 



1. 12 „ 



30 



4 



68 „ 



5.8i * 



1 r 5 „ 



40 



5 



77 » 



6.74 „ 



1 . 20 „ 



So 



7 



75 „ 



8.30 „ 



1. 20 „ 



