ON THE ELECTRICAL PROPERTIES OF PURE SULPHUR. 
101 
Side A-D. 
At one end . 
At middle . 
At other end 
centims. 
12-651 
12-652 
12-651 
Side D-C. 
centims. 
At one end . . . 12-367 
At middle . . . 12*367 
At other end . . 12*367 
Mean . . 12*6513 
Mean . . 12*367 
Mean breadth of top plate, 
12-3626 + 12-3670 
9 
12*3648 centims. 
Mean length of top plate, 
12-6520 + 12-6513 
---= 12‘6516 centims. 
Area of top plate, 156*43 sq. centims. 
Dimensions of Bottom Plate. 
Side A-B. Side B-C. 
centims. 
centims. 
At one end . 
12-360 
At one end . . . 
12-646 
At middle . • . 
12-361 
At middle . 
12*645 
At other end 
12-362 
At other end 
12*644 
Mean . 
12-361 
Mean . 
12*645 
Side D-C. 
centims. 
Side D-A. 
centims. 
At one end . 
12-365 
At one end . 
12-657 
At middle . 
12-367 
At middle . 
12-656 
At other end . 
12-365 
At other end . 
12-656 
Mean . 
12-366 
Mean . 
12*656 
Mean breadth of bottom plate, 
12-361 + 12-366 
2 
12*3635 centims. 
Mean length of bottom plate, 
Area of bottom plate . 
Mean area, both plates 
Thickness of top plate . 
Thickness of bottom plate 
12-645 + 12-6563 
2 
. . 156-40 
. . 156-415 
= 12*65065 centims. 
sq. centims. 
•58 
•32 
centim. 
The preparation and testing of these different plates lasted from April till October, 
