INTENSITY OF MAGNETIC AND DIAMAGNETIC FORCES. 7^9 



grm. 



1. Separation 0-956 



2. ... 0-968 



3. ... 0-968 



grm, 



4. Separation 0*956 



5. ... 0-956 



6. ... 0-956 

 Diamagnetism = 0-244 grm. 



It is hence evident, that the temperature, within the limits of 

 the experiment, exerts no influence upon the diamagnetism of 

 the sulphur, or at least one which is scarcely perceptible. 



69, Lastly, 120 grms. of mercury by weight were subjected 

 to examination in the same cup and with the same adjustment. 

 In this case, after each separation, the temperature of the mer- 

 cury could be determined, without disturbing the experiment, by 

 the immersion of a thermometer. The temperature determined 

 in this manner is however merely approximative, and somewhat 

 less than that corresponding to the moment of the separation : — 



ture. 



F. 



Diamagnetism = 0-400 grm. 



Hence, in the case of mercury also, the intensity of the dia- 

 magnetism at different temperatures is invariably the same. 



The different weighings here control each other, and thus also 

 afford a measure of the accuracy of the series of experiments. 



70. 1 shall now subjoin a final experiment, which was made 

 before I was in possession of the proper porcelain dish, with 

 114 grms. of impure mercury, in the same brass cup in which 

 the bismuth was examined : — 



Attraction of the empty cup, 2*15. 



Diamagnetic 

 Attraction of the Temperature repulsion 



cup aud mercury, after the separation, of the mercury. 



1. 1-84 " 230° F. 0-31 grm. 



2. 1-82 167 0-33 



3. 2-28 136 



4. 2-28 113 



Magnetic 



attraction 



of the mercurv. 



0-13 

 0-13 



