or HOT-EOLLED AOT) COLD-EOLLED MALLEAELE lEOK 
279 
The bars were returned to the flagstones of the dip plane in the same position, with 
lettered end downwards. 
Experiment 8, February 12, 
The bars had not been disturbed in any way since the last examination. They had 
been resting on the flagstones of the dip plane, with lettered end downwards. 
Hot-rolled 
Hot-rolled 
Cold-rolled 
1 Cold-rolled 
longitudinal. 
transversal. 
longitudinal. 
transversal. 
Ho. 
Diff. 
readings. 
Ho. 
Diff. 
readings. 
Ho. 
Diff. 
readings. 
Ho. 
Diff 
readings. 
1 
+ 14 30 
' 7 
+ 17 10 
13 
0 / 
+ 7 55 
19 
+ lS 30 
2 
+ 11 25 
8 
+ 10 20 
14 
+ 16 0 
20 
+ 9 45 
3 
+ 11 55 
i 9 
+ 8 50 
15 
+ 12 10 
21 
+ 16 15 
4 
+ 8 20 
10 
+ 8 50 
16 
+ 9 40 
22 
+ 10 10 
5 
+ 11 0 
11 
+ 10 30 
17 
+ 13 30 
23 
+ 8 30 
6 
+ 11 10 
1 
+ 95 
18 
+ 13 15 
24 
+ 5 30 
Sum... 
+ 68 20 
Sum... 
+ 64 45 
Sum... 
+ 72 30 
Sum... 
+ 66 40 
Total sum . . . +272° 15'. 
It is remarkable that the magnetism, though favoured by the inductive force of 
terrestrial magnetism, has in this day’s rest somewhat diminished. 
The bars were returned to the flagstones of the dip plane, with lettered end downwards. 
Experiment 9, February 12, IK 
The bars on the flagstones of the dip plane, with lettered end downwards, were 
struck each three times (from top to bottom) with the light hammer and with light 
blows, and were immediately examined. 
Hot-rolled 
Hot-rolled 
Cold-rolled 
Cold-roUed 
longitudinal. 
transversal. 
longitudinal. 
transversal. 
Ho. 
Diff. 
Ho. 
Diff. 
Ho. 
Diff. 
Ho. 
Diff. 
readings. 
readings. 
readings. 
readings. 
1 
+ 15 55 
7 
+ 16 6 
13 
+ 14 10 
19 
+ 18 15 
2 
+ 11 5 
8 
+ 14 10 
14 
+ 17 0 
20 
+ 14 30 
3 
+ 12 55 
9 
+ 12 20 
15 
+ 14 10 
21 
+ 18 50 
4 
+ 11 15 
10 
+ 13 15 
16 
+ 14 15 
1 22 
+ 18 5 
5 
+ 13 5 
11 
+ 12 55 
17 
+ 15 50 
23 
+ 10 25 
6 
+ 12 30 
12 
+ 12 40 
18 
+ 16 10 
24 
+ 11 0 
Sum... 
+ 76 45 
Sum... 
o 
00 
+ 
Sum... 
+ 91 35 
Sum... 
+ 91 5 
Total sum . . . +340° 45'. 
The magnetism is not much increased. 
The bars were placed on the equatorial plane flagstones. 
