380 ANIMAL MECHANICS. 



In order to find 0 and 0', we have 



- =-0.109, -£ = + 0.706, 



P 2 = Z 2 + Z /2 + 4c 2 , 



p2= 1^836 p <8o2in 



0.4897 



Z = - 0.632 in., £' = + 4.096 in. 



On laying down the points 0 and 0', thus found, on the 

 bones, I obtained — 



Distance of 0 from centre of socket = 4.57 in. 

 Distance of 0' from centre of socket = 5.31 ,, 



Difference, . . . 0.74 in. 



0 = 49° 17'- 



Work done . n 



Ti — : r = sin 2V = 08.88 per cent. 



Maximum work 



3. Adductor secundus (j3). — This muscle takes its origin 

 for a length of 3.72 inches along the symphysis pubis, and is 

 inserted, side by side, with Adductor secundus (a), into 3.45 

 inches of the upper portion of the linea aspera. 



Lion — Adductor secundus ((5). 



Lengths of Equidistant Lengths of Origin and 



Fibres. Insertion. 



p = 5.86 in. a = 3.72 in. 



Pi = 8.03 „ a' = 3.45 „ 



p. 2 = 10.16 

 Constants of Ilyperboloid, 

 2C = 3.20 in. 

 ity - 49 0 oo'. 



