272        M.  E.  Edlund's  Researches  on  the  Electromotive 
Zinc-  Silver. 
Exp.  66. 
■No.  1. 
Diff.  of  temp 
Deviations. 
Conducting-power. 
100 
.     .     .        3-2 
1655 
9-9 
.     .     .        30 
165-5 
9-7 
9-5 
.     .     .        3-0 
.     .     .        30 
Mean  .  1655 
Mean  .  9*78 
Mean  .  305 
Exp.  67. 
No.  2. 
7-6     . 
.     .       2-0 
168-0 
7*4     . 
.     .       1-8 
168-7 
7-2     . 
.     .       15 
168-2 
71     . 
•     ■       1'7 
Mean  .  168-3 
Mean  .  7*33 
Mean  .  1-75 
Whence  we  obtain  : — 
No.  1.  Deviation 
=  302 
No.  2. 
=  2-27 
Mean     .     . 
=2-65 
Platinum-Palladium* 
Exp.  68. 
Diff.  of  temp. 
Deviations. 
Cjnducting-povver. 
o 
73     . 
.     .     41^8 
1660 
7*3     . 
.     .     43-0 
166-0 
7-1     . 
7-3     . 
.     .     42-6 
.     .     430 
Mean  .  1660 
Mean 
•25     Mean  .  42*6 
Whence  we  obtain 
Deviation  =56-63. 
■ugh 
In  each  combination  the  thermoelectric  current  passed,  through 
the  warmer  point  of  contact,  from  the  second  to  the  first  metal  of 
the  combination,  consequently  from  copper  to  iron,  from  bis- 
muth to  copper,  &c.  We  thus  obtain,  for  the  combinations  in- 
vestigated, the  following  thermoelectric  series,  in  which  the 
numbers  designate  the  thermoelectric  force  arising  from  the 
contact  with  copper  : — 
