RESIDUAL CHARGE OF THE LEYDEN JAR. 
625 
h m 
Temperature 94°. 
Time 6 35. Charged with 7 elements. 
6 37. 457 to 422 in 1 minute. 
6 40. 458 to 432 „ „ 
6 47. 458 to 433 „ „ 
Temperature 94^°. 
Temperature 153^°. 
8 0. Charged with 7 elements. 
8 1. 461 to 340 in 4 seconds. 
8 2. 461 to 350 „ „ 
8 3. 462 to 352 „ „ 
8 5. 463 to 358 „ „ 
8 10. 463 to 362 „ „ 
Temperature 153-J 0 . 
B=4-36'| 
Log B=0-64 tat 155|°. # 
4/(l)=5-39 J 
Temperature 66°. 
10 31. Charged with 7 elements. 
10 41. 964^ to 945 in 4 minutes. 
Temperature 67°. 
With this glass the results do not agree so closely with the exponential formula as 
with glass No. 2. This is perhaps not surprising when it is considered that the tempe- 
ratures differ more from that of the room, and, consequently, that errors due to unequal 
heating of the acid, and to exposure of the stem of the thermometer, will be greater. 
The observed values of B, and those calculated from the formula log B=4T7-f O‘O2830, 
are given in the following Table : — 
