ANIMAL MECHANICS. 



371 



From these measurements we obtain — 



Hence we find 



3.24 m- 



1-3493 



The axis LM, in Fig. 96, is 

 drawn at this distance from 

 the vertex 0, and the axis 

 ST is drawn parallel to it 

 through the socket S. 



Distance between calculated 

 and observed axes = 0.18 

 in. 



7. Glutceus quartus. — 

 This muscle takes origin 

 from a horizontal line on 

 the ilium, 2 in. long, below 

 the Glutceus tertius, and in 

 front of the acetabulum, and 

 is inserted on the inner front 

 of the great trochanter, in- 

 side the insertion of Glutceus 



Angle. 



1 



\j~ v jcosO 



o° 



0. 3030 







1.5273 



10 



0. 2857 



1.5857 



20 



0.2475 





3° 



0.2137 



1.4872 



40 



0. 1733 



i-376i 



50 



0. 1261 



1.2258 



Sum, 



1-3493 



8-7541 



2 b 2 



