1883.] On the Dependence of Radiation on Temperature. Ill 



The relation between the resistance and temperature is given in the 

 following table. 



Temperature rising. 



Temperature fulling. 



Temperature. 



Resistance 

 ohms. 





Temperature. 



Resistance 

 ohms. 





Melting ice, 0° C. 

 12 1°C 



1 -0072 

 1 0061 

 1 -0061 

 1 -0184 

 1 -0924 



1-0000 



1-0117 

 1 -0852 



Boiling water . . . 

 13 -8° C 



1 -0924 

 1 -0198 

 1 -0072 



1 -0S52 

 1 0131 

 1-0000 • 



Melting ice 



Boiling water. . . . 



The values for a, <3, 7 deduced by the method of least squares are — 



a= -005 



(3= -000694 

 7= -7285 



In conclusion I have pleasure in acknowledging the assistance I 

 have received in conducting the experiments, and in the preparation 

 of this paper, from Messrs. E. Lauckert and Edward Hopkinson, 

 D.Sc. 



The Society adjourned over Ascension Day to Thursday, May 10th. 



