80 BULLETIN OF THE UNIVERSITY OP WISCONSIN 



The preceding computation furnishes the absolute terms 

 of the following equations: 





 + 77.7r + 2^ = +39.08 



- 85.6 r + 2/5 = -43.82 



- 98.3 r 2/3 = - 47.95 

 + 81.1 r - 2fi = + 43.13 



A least square solution of these equations furnishes the 

 Talues : 



if jr 



r = + 0.506 ft = - 0.600 



Prom numerous determinations with the spirit level, the 

 inequality of the pivots is known to be i 0".64, which, 

 combined with the value of A gives for the flexure the 

 Talue/= + (T.04. 



