Calorimetric Absolute Measurements. 193 



Experiment 2. The same element with the same filling. 

 <= 7-411 S. M. IT., <' = 7-279 S. M. IT., ,'=20-094, 



,- = 20-007, E = 19-150xl0 10 ( millim ' f 2 m g rti ). 



\ sec. / 



Mean values. 



w l= 7-345 e=20-050. 



Result. 



1 S. M. U. = 0-9552xl0 10 ( 1111 ^). 



\ sec. / 



Experiment 3. Daniell's element — freshly amalgamated zinc, 

 sulphuric acid of sp. gr. 1*035, concentrated solution of sul- 

 phate of copper, copper., 



wt! = 6-949 S. M. U., «-!"= 7-081 S. M. U., •=11-952, 



,-=11-741, E = ll-286xl0 10 ( millimi ^ > 

 ? \ sec. 2 / 



Mean values. 

 ^ = 7-015 , = 11-847. 



Result. 



1 $. M. IT. =0-9526 xlO 10 !^^-). 



\ sec. / 



Experiment 4. The same element with the same filling. 



Wl ' = 6-831 S. M. XL, Wl " = 7-125 S. M. U., ,'=11-887, 



,- = 11-739, E = n-317xl0^( mmim -% m g r 'l 



\ sec. / 



Mean values. 



^ 1 = 6-978 , = 11-814. 

 Result. 



1 S. M. U. = 0-9579 xl0 10 f\ 



\ sec. / 



Experiment 5. Daniell's element — freshly amalgamated 

 zinc, concentrated solution of sulphate of zinc, concentrated 

 solution of sulphate of copper, copper. 



<=16-598 S. M.U., V = 16-039 S. M. IT., •=11-453, 



,- = 11-450, E = 10-954xl0 10 ( millim - l f^ > 



\ sec. j 



Mean values. 



^=16-319 ,=11-451. 



Result. 



1 S. M. U. = 0-9565 x io^HHHIEA 



\ sec. / 



Phil Mag. S. 5. Vol. 5. No. 30. March 1878. O 



