Comparison of Ley den jars ana 1 batteries 291 



583] M. 5. jar i -i 3184 [circ. inc.] 



2 = 3050 

 3= 3635 

 4= 2675 



5 = 11816 



6 = 12544 



7 = 11816 



8 = 10761 

 jst row = 64538* 



Quantity of electricity communicated to whole battery f by 



B + 2A = 3-61 + 2A 



2B + 2A = 7-07 + 2A 



3B + 2A = 10-36 + 2A 



36 + C + 2A = 13-16 + 2A 



R = 20-58 



R + B = 23-66 D = \ 



R + 26 = 26-74 



R + 36 = 29-83 



Quantity of electricity communicated to i 8 ' row by 



A = -95 B + 2A = 2-56^ 



2A=i-8 26+ =4-58 1 



3A=2-6 36+ -6-17 1 



4 A = 3-3 {? 4 } 3 B + = 7-54] 



Charge of I st battery of Nairne. 



584] M. 6. Electricity of I st row of old battery was reduced to J by touching 

 nj times by crown glass of 10 inches square. Therefore charge of I st row to 

 that of crown glass as 15! to i. The first row of new battery appeared by that 

 means to contain 10-7, the 2 nd row II, and the 3 rd 11-4 times the charge of the 

 same plate. 



The mean area of the convex coating of each jar seemed to be 14 x iz\ = 175 

 inches, to which adding 5, id est T % of area of bottom, whole coating may be 

 estimated at 180 square inches of same thickness as sides. 



fi st ( 10 



2 row of new battery was reduced to J by touching -j loj 

 3 1 10 



j-13'94 

 times by jar i, therefore charge = jar i x \ 14-66, and charge mean row 



U3-94 

 = jar I x 14-18 = 45,149 inc. el. 



* [See Art. 506.] 



f [Here A seems to be the charge of one of the first 4 jars taken as unit, B that 

 of one of the others taken as 4, and K that of the row taken as 22, the battery being 

 154, as in M. 2.] 



19 2 



