[satterly] 



STUDY OF A CATENARY 



43 



Co fa too /i^ f4to c/rns 



The difference between FH and DE = 813^ cms., which agrees 

 fairly well with the difference between 105-5 and 21-0, the measured 

 ordinates from the line LL. The hanging chains afford perhaps an 

 easier and more accurate method of measuring To and Ti than the use 

 of balances or scale pans and weights. 



Test of the Equations 



Having got now the position of the axis of x, it is possible to 

 convert all the previous measures of the ordinates into values of Y. 

 We thus get the following table : 



