590 
PROFESSOR J. A. EWING ON EXPERIMENTAL 
Soft Annealed Iron Wire in Earth’s Vertical Field, Plate 62, fig. 36. 
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Magnetometer. 
293 
292 
290 
2861 
288 ^ 
2901 
292| 
291 
2891 
2861 
281 
283 
285-r 
288 
291f 
290 
2871 
284 
280 
2741 
277 
279 
282 
286 
290 
288 
285-1 
282 
2781 
274 
266 
268 
271 
274 
277 
281 
287 
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Magnetometer. 
0 
287 
1 
2851 
2 
2821 
3 
279 
4 
275 
5 
2701 
6 
266 
7 
261 
6 
263 
5 
2651 
4 
2681 
3 
272 
2 
275 
1 
280 
0 
286 
1 
284 
2 
281 
3 
2771 
4 
273 
5 
269 
6 
265 
7 
259^ 
8 
2511 
7 
254 
6 
2564 
5 
259| 
4 
262 
3 
266 
2 
270 
1 
275| 
0 
282 
These and the whole of the following observations detailed in this paragraph are 
shown graphically in Plate 62, fig. 36. 
At this point a variation of the process was introduced. The wire was vibrated by 
tapping, which caused the reading to rise to 295, and the cycle of loads 0-8-0 was 
again applied with vibration before each reading of the magnetometer. The readings 
were as follows; they are also shown by the curves drawn thus —.—.—• in fig. 36. 
