VALUE OF THE BRITISH ASSOCIATION UNIT OF RESISTANCE. 
253 
Table III. gives the same observations for Part II. as are given in Table I. for 
Part I. 
With reference to the table we must notice that the experiments were not always 
made in the order I., II., III., IV., and therefore the times of swing in the column 
headed T are not in order of magnitude. Thus, in the second set, the real order of the 
experiments was II., I., III., IV., and in this order the values of T increase uniformly 
by 0"M305. In the experiments with two Daniell’s, experiment IV. was made on 
November 16th, experiment II. on November 18th, and experiments III. and I. on 
November 21st. 
Table III.—Series A. 
Battery. 
Position. 
Mean double 
throw. 
Mean double 
deflection. 
T. 
Temperature 
R. 
X. 
x '. 
r 
I. 
359T 
223-35 
23'384 
12-4 
495 
400 
4 Daniell’s . < 
II. 
III. 
360-4 
362-75 
224- 5 
225- 2 
23-384 
23-386 
12-7 
12-8 
640 
630 
555 
540 
ir 
l 
IV. 
361-9 
225-3 
23-388 
131 
615 
525 
r 
I. 
364-2 
227-35 
23-415 
13-4 
350 
270 
4 Daniell’s . < 
II. 
III. 
364-55 
359-4 
227-7 
223-8 
23-410 
23-420 
13-4 
13-3 
300 
615 
215 
530 
l 
IV. 
352-45 
220'2 
23-425 
13-0 
565 
455 
r 
I. 
451-2 
280-8 
23-373 
11-9 
510 
420 
5 Thomson’s . < 
II. 
453-2 
281-9 
23-367 
11-8 
420 
330 
III. 
452-2 
280-4 
23-380. 
12-2 
525 
435 
L 
IV. 
450-9 
280-8 
23-378 
12-1 
515 
430 
r 
I. 
190-55 
119-1 
23-386 
12-4 
575 
490 
2 Daniell’s . •< 
II. 
191-8 
119-8 
23-405 
134 
415 
335 
III. 
190-75 
118-8 
23-382 
12-3 
805 
715 
k. 
IV. 
191-3 
119-6 
23-391 
13-4 
570 
490 
Table III.—Series B. 
Battery. 
Position. 
Mean double 
throw. 
Mean double 
deflection. 
T. 
Temperature 
R. 
X. 
x\ 
r 
I. 
374-5 
287-95 
23’344 
11-6 
630 
545 
5 Thomson’s . < 
II. 
III. 
373-25 
375 1 
286-5 
288-3 
23-355 
23-322 
11-9 
10-8 
895 
415 
800 
335 
l 
IV. 
374-15 
286-9 
23-333 
11-2 
780 
700 
r 
I. 
370-9 
285-6 
23-406 
12-6 
575 
485 
5 Thomson’s . < 
II. 
372-0 
286-3 
23-405 
12-5 
465 
385 
III. 
369 15 
285-15 
23-407 
13-0 
480 
380 
L 
IV. 
370-5 
286-2 
23-406 
12-8 
505 
415 
