Hf, A. Rowland—Magnetic Effect of Electric Convection. 37 
Deflection o 
Direction of | Electrifica- + 
main Lipeetaeal eae alent | engin of 
+ 172°5 
+ _ 165°5 7-0 “300 
172°5 
+ 120°0 
aes _ 127°5 ‘i 
+ 121°5 fi ~~ 
= 129°0 
_ 163°5 
+ 170°5 x i, 
- “a aa 1-25 297 
fe 170°5 
+ 118°0 
_ 127-0 3 x 
2 pets 8-25 270 
—_— 127°5 
Mean values. 7°50 "2955 
s 22 Sia, t= -2955. 
Hence for this case we have from equation (1), 
X—-'99 X’= eee, Sonor -00000317. 
~~ 315000° 
And from the electrification, 
x—'99 X’— : ——-==°00000349. 
286000" 
Series. Everything the same as in the first series, 
etieet vs =8'1, n’=-0521, D=114. 
Direction of | Electrifi Scale reading yg on a Length of. 
motion. tion of disc. be mm. elecirifieat’n spark. 
+ 151-0 
— 158°5 7°50 "287 
- 151°0 
+ 192°0 
mo —_ 185°5 726 292 
ee 193°5 
_ 1575 
Ss - 148°5 : ; 
ee 1575 8°25 295 
- 150°0 
_ 185:0 
+ 192°5 
+ a. 185°5 7-45. 302 
+ 193°5 
—_ 151°0 
_— ad 143°5 7-25 287 
— 150°5 
Mean values. 760 486| =| 2926 
