384 Magnetic Influence of Solar Light. 



TABLE XIII. 



Shewing Duration of Oscillations of Testing Needle with Cylinder N in front, 

 before and after exposure. 



Medium Green Cloth. 



Feb. 

 24th 



Hours of 

 Expos. 



From 



A. M. 



To 



P. M. 



•B 2 



In. 



2 



In. 



0.05 



Temp. 



a> w 



cq W 



70° 



102° 



Sums 

 Means ... 



Duration of 

 Oscillations. 



Before 

 Expos. 



98 

 98 

 99 

 99 

 99 



493 



98-6 



After. 

 Expos 



98 

 98 

 99 

 98 

 99 



492 



98.4 



Remarks. 



TABLE XIV. 



Shewing Duration of Oscillations of Testing Needle with 

 before and after exposure. 

 Medium Orange Cloth. 



0 in front, 



H 



O 

 0> 



Feb. 

 1 24th 

 2 

 3 

 i 



Hours of 

 Expos. 



From 



A. M. 



To 



21 



•3 a 



In. 



2 



.2 o 



In. 

 0-04 



Temp. ^ 



CD CO 



ft ° 



CO X 



cq W 



70o 



5 o 



101' 



Sums 



Means 



Duration of 

 Oscillations. 



Before 

 Expos. 



98 

 98 

 98 

 98 

 98 



50 490 



10 



98 



After 

 Expos 



97 

 98 

 97 

 98 

 9 



488 



97-6 



Remarks 



From these three tables, it accordingly appears that 

 cloth media, are not more successful in displaying the 

 magnetic influence of light, than are those of glass or 

 silk; and the general conclusion warranted by the entire 



