338 Messrs. J. E. H. Gordon and W. Newall on the Effect 



Bar D. 



Bar E. 



Tempe- 

 rature. 



Deflection. 



Fall in 

 30°. 



F. 



Tempe. 

 rature. 



Deflection. 



Fall in 

 30°. 



F 



o 



50 

 20 



50 

 20 

 50 

 20 

 50 

 20 

 50 

 20 

 50 

 20 



5 - 66 V 6 



565 



562 



561 



559-7 



559 j 



551-5 



550 



547-8 



546 



545 



513-5 



1 15-7 

 1 15-7 

 L 15-5 



1 15-8 



00 



C5 



© 

 © 

 © 



50 

 20 

 50 

 20 

 50 

 20 

 50 

 20 

 50 

 20 

 50 

 20 



162-5 

 163 

 1640 

 1640 

 j 64 

 164*2 



155 



156 



155*2 



156-0 



156-5 



156*7 



7-0 



[ 8-3 



}'■' 



© 



© • 



in 



© 

 © 



Mean deflection at 20° =562 2. 

 Mean fall =15 -67. 



Mean deflection at 20'" = 163 6. j 

 Mean fall = 76. 



Bar. F. 



Tempera- 

 ture. 



Deflection. 



Fall in 30°. 



F. 



o 



50 





3277 



] 





20 



338-5 





12-4 





50 





324-5 



J 





20 



339-2 





1 





50 





324-7 



I 146 



© 



20 



339-4 





J 



os 



50 





325 



1 



CO 



20 



339-5 





I 14-8 



© 

 © 



50 





324-3 



J 





20 



339-6 





1 





50 





3*25-5 



I 14-8 





20 



341 





J 





Mean 



deflection at 20° =339-5. i\ 



lean fall =14- 



15. 



For C the mean of four determinations of 1 F by the. old 

 method (i. e. taking observations at 20°, 25°, 30°, &c.) gives 

 •001329933. The mean of this and of the one given above is 

 •001338745. 



