EESIDUAL CHAEGE OE THE LEYDEN JAE. 
609 
Experiment y. — The flask was charged for three days with 48 elements, equal to 
3260 divisions, or thereabouts, then discharged. 
I. gives the time from first discharge to the middle of the period of insulation ; 
II. the scale-divisions traversed ; 
III. the times of insulation in minutes; 
IV. the value of ^ ; 
V. 4^-B. 
I. II. 
III. 
IV. 
V. 
i 
53 
6 
318 
0-098 
1 
62 
186 
0-057 
2 
64 
1 
128 
0-039 
3 
62 
2 
3 
93 
0-029 
5 
70 
l 
70 
0-021 
10 
92 
2 
46 
0-014 
15 
7H 
2 
35-75 
0-011 
20 
63 
2 
31-5 
0-0097 
30 
48 J 
2 
24-25 
0-0074 
60 
109 
8 
13-6 
0-0042 
90 
89 
8 
11-12 
0 0034 
125 
69| 
8 
8-7 
0-0027 
180 
54 
8 
6-75 
0-0021 
The results thus obtained agree fairly with those obtained by Experiment f3 ; the 
differences may be attributed to errors of observation. 
Experiment <$. — The charging lasted 5 minutes. The experiment was performed 
twice, with positive and negative charges respectively. 
I. gives the time from first discharge ; 
II. the period of insulation ; 
III. and IV. the divisions traversed in that time; 
V. their mean ; 
VI. the value of ^ thence obtained ; 
VII. the value of ^ calculated from the last experiment. 
4 r 2 
