ANOMALOUS BEHAVIOUR OF DELICATE BALANCES, ETC. 



413 



TABLE V. 



The comparative experiments, the results of which are given in the three curves 

 shown in Fig. XIII., clearly indicate the advantages to be derived from the use of the 

 inner protecting case and accompanying bolometer. 



Curve I. is a record of the variations in the temperature upon one occasion in the 

 absence of the beam case. Curve II. was obtained after the beam case had been 

 introduced. And, although the graph roughly approximates a right line, we learn 

 from its direction that a suitable position had not been chosen for the balance ; the 



