670 PROFESSOR THOMSON ON THE ELECTRO-DYNAMIC QUALITIES OF METALS. 
Table II. November 19th, 1853, Con- 
Middle of conductor in water kept 
Streams of water at temperature 
Temperatures at middle points A, B of the parts between heater and 
1. 
2. 
3. 
4. 
5. 
6. 
7. 
8. 
9. 
10. 
11. 
12. 
13. 
1 s ^ 
sL ^ 
1 e 4^ 
^ ^ 
1 s 
(D 
S 
•4^ 
4> S 
-1^ 
a> 
fl 
•4-a 
. ° a 
a C 'a 
•4^ 
A (u a 
1 ti-d 
. -1^ 
c3 g a 
1 
• c ^ 
^ c 
o) £1 
-p h ts 
, "c 
U 4? 
-2^ G 
-4-3 
X 
s 
-4-3 
J. = c 
-t- G ^ 
a 2 
“ s ” 
^ 'S 
-u. X 
.* e 4> 
aj GJ ^ 
« S3 ^ 
4i ^ 
5 G 'd 
Augmentations of difference Tg— 
t; 
3 C 
J 4) 
=3 
3 S 
J 4) 
o 
a 
4> 
IS 
•D 
t 3 a 
o <u 
t- ?3 fl 
o c; 
03 3 C 
3 a; 
s g g 
t3 
O 
c 
Jd =3 S3 
2 o 4J 
3 ^ S 
5- a <“ 
«J s c 
p CJ <D 
® S S5 
CT" u OJ 
(in hundredths of a degree Cent.), during 
>> 
=^o 
x 
CT" O ^ 
cr o ^ 
JS ° ^ 
cr* o 
pD 
j: "o ^ 
o 32 
•5 
Periods 
^ .s 
pCH >- 
a “ 6c 
O g a 
" a| 
^ .2 60 
•a 3 a 
£ a 'C 
“is <u 
S-S 
o a 
fe-g 
bO 
.S 
‘G 
OJ 
-I-* 
A 
,2^ fcJD 
^ s s 
£ c 'G 
a-g 
:S ^ bj3 
X C3 .2 
^ S 
a 2 60 
a g a 
S.S -g 
“ s| 
■5 a bo 
'S, a a 
60 g -r; 
f^a .2 
a 
rC (U 
-f* -4-3 
C P 
iS-S 
s 
be 
fl 
2 60 
£ §■! 
I 2 to 
> a.a 
S3 
';5 4? 
w a-s 
^ fcD 
=5 £ 
fe S3 ’G 
HS| 
g 2 60 
2a® 
■S -I 'B 
Eh ^ a 
<U 
4) 
4> 
0) 
4) 
•u 
0) 
4) 
a> 
4) 
A. 
B. 
A. 
B. 
A. 
B. 
A. 
B. 
A. 
B. 
A. 
B. 
A. 
B. 
A. 
B. 
A. 
B. 
A. 
B. 
A. 
B. 
A. 
B. 
A. 
B. 
I. 
-3 
-2 
-I 
-1 
- 4 
-2 
- 4 
-1 
4 
-2 
-4 
4 
3 
1 
-1 
2 
2 
— 2 
1 
1 
-1 
2 
1 
-1 
-3 
1 
II* 
3 
5 
-1 
1 
0 
-5 
6 
4 
5 
-2 
15 
1 
7 
0 
10 
-2 
38 
2 
-6 
9 
8 
-5 
0 
0 
13 
-1 
III. 
0 
1 
-2 
3 
- 3 
-3 
- 1 
1 
-1 
1 
0 
-3 
-1 
5 
-3 
2 
- 4 
-2 
-2 
3 
1 
2 
-2 
-1 
0 
0 
IV. 
0 
-3 
0 
1 
3 
3 
- 3 
2 
5 
2 
-1 
3 
4 
4 
5 
1 
- 4 
0 
6 
1 
-3 
2 
4 
4 
4 
2 
V. 
I 
0 
-1 
0 
- 4 
3 
- 3 
2 
-2 
1 
0 
3 
-1 
1 
-1 
1 
- 1 
1 
0 
1 
-1 
1 
-2 
0 
-3 
1 
VI. 
0 
2 
-3 
2 
- 5 
3 
- 2 
3 
0 
1 
-3 
1 
-2 
3 
-6 
3 
- 1 
0 
-2 
1 
-1 
1 
-2 
-1 
-1 
2 
VII, 
0 
1 
1 
0 
- 3 
1 
- 2 
0 
-2 
2 
— 2 
3 
-1 
3 
0 
2 
- 1 
2 
-1 
4 
-2 
3 
-1 
2 
-2 
1 
Augmentations during quarter-minutes, summed 1 
for five periods J 
1 
1 
-5 
6 
-12 
7 
-11 
8 
0 
7 
-6 
7 
-1 
16 
-5 
9 
-11 
1 
1 
10 
-6 
9 
-3 
4 
-2 
6 
Differences of augmentation during correspond- ] 
ing quarter-minutes of first and second halves 1 
0 
11 
19 
19 
7 
13 
17 
14 
12 
9 
15 
7 
8 
of a period, summed for five periods J 
Differences of augmentation in equal intervals’! 
from beginning and middle of a period, summed i- 
0 
11 
30 
49 
56 
69 
86 
100 
112 
121 
136 
143 
151 
for five periods J 
Mean augmentation of difference in favour of 1 
thermometer next entering current / 
°-000 
°011 
°030 
°-049 
'^•056 
°-069 
°-086 
O 
O 
o 
°-112 
°-121 
°'136 
°-143 
°-151 
U 
min 
If 
min. 
2-2- 
min 
2| 
min 
3j 
min. 
4 
After the conclusion of this experiment the current was started in one direction and broken, and | 
effect, when the heater and coolers were kept regular, on either thermometer amounted to about 1°'4, i 
* Period II, rejected because the water-supply, which had failed during the whole of Period I., 
