148 
PROFESSOR DANIELL ON VOLTAIC COMBINATIONS. 
Calculation. 
Experiment. 
4 single cells, 
4 - 2*49 
1-51 
= 0*3325 
Cubic inches. 
= 8-31 
Cubic inches. 
7-5 
4 + 0-541 
— 4-541 
4 double cells, 
4 — 2-49 
1*51 
= 0-5942 
= 14-85 
13-7 
~ + 0-541 
“ 2-541 
4 treble cells. 
4 - 2-49 
1-51 
= 0-8071 
= 20-17 
21 
f + 0-541 
~ 1-871 
4 quadruple cells, 
4 - 2-49 
1-51 
= 0-9799 
= 24-5 
25-5 
4- + 0-541 
4 
~ 1-541 
4 quintuple cells, 
4 — 2-49 
1-51 
= 1-126 
= 28-15 
30 
4- + 0-541 
5 
~ 1-341 
5 single cells. 
5 - 2-49 
5 + 0-541 
2-51 
~ 5-541 
= 0-453 
= 11-33 
1T25 
5 double cells, 
5 - 2-49 
2-51 
= 0-8254 
= 20-63 
20-5 
4 + 0-541 
“ 3-041 
5 treble cells. 
5 - 2-49 
2-51 
= 1-137 
= 28-42 
28-7 
~ + 0-541 
— 2-208 
5 quadruple cells, 
5 — 2-49 
2-57 
= 1-401 
= 35-04 
35-2 
4 + 0-541 
4 
1-791 
10 single cells, 
10 - 2-49 
7-51 
= 0-7124 
= 17-81 
15-7 
10 + 0-541 
— 10-541 
10 double cells, 
10 - 2-49 
7-51 
= T355 
= 33-88 
33-7 
~ + 0-541 
~ 5-541 
15 single cells. 
15 - 2-49 
12-51 
= 0-8117 
= 20-29 
18-7 
15 + 0-541 
15-541 
20 single cells, 
20 - 2-49 
17-51 
= 0-8524 
= 21-31 
22. 
20 + 0-541 
— 20-541 
The agreement of the calculated and experimental results under such complicated 
circumstances, as shown in the last two columns of the preceding Table, must, I think, 
be deemed very satisfactory; and it is worthy of remark, that the result just named, 
of the independent experiment with the single cell, 25 cubic inches, is almost iden- 
tical with that deduced from the experimental determination of five cells ; taking 
1 T25 cubic inches to represent accurately the fraction Q-453 : and indeed agree very 
