




in Alloys of Bismuth and Tin. 569 
TaBLE I.—Thomson Effect. 
C=3 amperes. x, =3°4 ems. 0=382°°5 
- 
£,=3°DD 5; aa BL 535 degree per mm. 
| 
| H. | y,x10% | 7x10 é. 
O34 —4+562 
4:29 / —4:225 a8l 
524 | —4656 | 
G15 | —4°308 388 
78 —4738. | 
87 | 4-404 359 
8°59 —4785 
Mean value for ¢... 0°376 
Correction... _°003 










O58 0379 
Taste II.—Joule Effect. 
C=2 amperes. r,=3-4 ems. &,=3'Dd ems. 
| 
h oe. yok ts: Por tO. ih ess 
12-24 +0°97 
1-26 —179 2°84 
222 | +112 
2 Oe ot ee 2°76 
4:23 | | -+0°96 
518 —1L75 277 
615 | +1-08 
Til | —177 2°83 
85 | | +1:05 
9-0 —1°68 2-76 
| 9°55 +112 

Mean value for 6,... 2°79. 
From the data given in these tables, the value of o at 
32°°5 C. may be caledbaed according to the expression on 
p- 566, when it is found that 
o =—767 ergs per C.G.S. absolute unit current per 1° C. 
320-5 
Other values obtained are shown below :— 
0. ao C. 
a dx 
25 D295 —746 ergs per C.G.S, absolute unit current per 1° C. 
27-4 525 ~753 . F : 
325 "339 —767 - 
The value found for o by Batelli is —12*7 x 10~° calories 
or — 332 ergs. 
