380 



Magnetic Influence of Solar Light. 



TABLE VI. 



Shewing Duration of Oscillations of Testing Needle, with Cylinder F in 

 front, before and after exposure. 

 Medium White Silk. 



Feb. 

 22d 



Hours of 

 Expos. 



From 



10 



To 



o 



•5 -S 



o . 



.3 U 

 Q 



In. 



0-05 



Temp, 



05 



o 



<p 00 



£ o 



£ Oh 



66° 



Sums 



92° 



Means 10 



50 



Duration of 

 Oscillations. 



Before 

 Expos. 



88 

 88 

 89 

 87 



440 



88 



After 

 Expos, 



85 

 86 

 86 

 86 

 85 



428 



85-6 



Remarks. 



There is here a small indication of increase of intensity 

 to the 2A f but no signs of Polarity could be obtained, the 

 result is therefore doubtful, especially as the next series, 

 incline in the opposite direction. 



TABLE VII. 



Shewing Duration of Oscillations of Testing Needle, with Cylinder G h 

 front, before and after exposure. 

 Medium Blue Silk. 



Hours of 

 Expos. 



From 



A. M. 



I Feb. 

 1] 22d. 

 2 



To 



P. M, 



O 



In. 



2 



• .5 



In. 

 0.04 



Temp. 



<U 00 



s c 



70 



Fh so 

 aj o 



92 



Sums 



Means 



50 



Duration of 

 Oscillation. 



Before 

 Expos. 



95 

 96 

 96 

 96 

 96 



479 



10 95.8 



After 

 Expos. 



96 

 96 

 96 

 96 

 96 



480 



96 



Remarks. 



