1066 
DR. T. R. ROBINSON ON THE DETERMINATION OF 
Table XXIV. 
No. 
Dir. 
Time. 
A. 
A'. 
Log. <p'. 
V. 
v'. 
V. 
V'. 
V-V'. 
I. 
S.W. 
600 
291-5 
343 
1-04878 
4-156 
2-177 
11-853 
11-719 
+ 0-134 
II. 
s.w. 
420 
202-5 
211 
1-04675 
4-131 
1-946 
11-785 
10-516 
+ 1-219 
HI. 
S.W. 
225-03* 
138-6 
147 
1-05066 
5-526 
2-488 
15-710 
13-169 
+ 2-541 
IV. 
s.w. 
588-7 
433 
554-5 
1-05384 
6-302 
3-587 
17-919 
19-696 
-1-777 
V. 
W. b. N. 
540 
156 
139"5 
1-04918 
2-475 
0-990 
7-159 
6-676 
+ 0-483 
VI. 
S.W. 
600 
313-5 
414-5 
1-04366 
4-477 
2-631 
12-750 
13-362 
-0-612 
VII. 
S.W. 
600 
263 
306-3 
1-04293 
3-756 
1-941 
10-730 
10-674 
+ 0-056 
VIII. 
S. b. w. 
780 
391-7 
449 
1-04205 
4-303 
2-192 
12-266 
11-796 
+ 0-470 
IX. 
S. b. W. 
600 
371-5 
449 
1-04491 
5-305 
2-850 
15-096 
15-314 
-0-218 
X. 
S. S. W. 
660 
402 
499 
1-043439 
5-219 
2-879 
14-844 
14-969 
-0-125 
XI. 
S. b. E. 
840 
430-3 
471 
1-33626 
4-389 
2-185 
12-509 
12-575 
-0-066 
XII. 
w.s.w. 
532-3 
2611 
290-4 
1-33929 
4'145 
2-078 
11-824 
12-112 
-0-288 
XIII. 
S.w. b. s. 
600 
420-3 
535 5 
1-33648 
6-002 
2-085 
17-052 
18-201 
-1-149 
XIV. 
S.W. b. W. 
600 
419-5 
503 
1-33768 
5-949 
3-193 
17-019 
17-117 
-0-098 
XV. 
S.W. 
608-1 
362-3 
408-5 
1-33538 
5-105 
2‘558 
14-524 
14-211 
+ 0-313 
XVI. 
N. 
540 
320-5 
407 
1-32198 
5-085 
2-870 
14-470 
15-480 
-1-011 
XVII. 
N. 
600 
363 5 
430 
1-32039 
5-191 
2-729 
14-763 
14-933 
-0-170 
XVIII. 
N. ' 
600 
382-5 
493 
1-32025 
5-462 
3-129 
15-527 
16-741 
-1-214 
XIX. 
w. 
666 
493-5 
512-5 
1-33003 
6-407 
2-957 
18-193 
15-991 
+ 2-202 
XX. 
W. b. N. 
600 
461 6 
550-5 
1-33073 
6-592 
3-494 
18-714 
18-456 
4- 0 - 258 
The sum of Y —V'=+0'948 ; Se=83T21, so Ax= + 0-0114, .r=2'5814, z=5'664, 
and the limit = 4'961, This great excess of x above that of K is very remarkable, 
and shows not only that anemometers must be equal as well as similar to have the 
same constants, but also that x depends on the diameter of the cups as well as the 
length of the arms ; for here it is greater than in E 3 , though the arms are longer. 
(75.) E 5 . The 4" cups were fixed as far out on the cross as possible, the distance 
from the axis being 26"'75 ; 2'75 greater than that of Iv, and I expected its x would 
be less. At first it was mounted on the axle of E, but it moved so much slower than 
K that I thought its friction =27‘42 was too much for the small cups. I therefore 
mounted it on the spindle already mentioned with friction =4'72, and with its results 
(YI., XXIII.) computed Table XXY. 
Table XXY. 
No. 
Dir. 
Time. 
A. 
A'. 
Log. <p'. 
V . 
v\ 
V. 
V'. 
V-V'. 
i. 
s. 
600 
547 
378 
0-94639 
7-812 
6-016 
22-163 
21-194 
+ 0-969 
ii. 
S.W. b. s. 
600 
444-5 
292-3 
0-94689 
6-347 
4-652 
18-026 
16-617 
+ 1-409 
hi. 
IV. b. N. 
600 
302 
172-5 
0-92562 
4-313 
2-825 
12-293 
10-599 
+ 1-694 
IV. 
N.W. 
300 
261-8 
183 
0-92552 
7-477 
5-825 
21-207 
20-527 
+ 0-680 
V. 
S.W. 
600 
547 
387 
0-94124 
7-811 
6160 
22-159 
21-674 
+ 0-485 
VI. 
S.W. 
660 
646 
484 
9-97483 
8-386 
7-003 
23-783 
24-291 
-0-508 
VIT. 
s.w. 
660 
723'5 
561 
0-16863 
9-3925 
8-117 
26-627 
28-134 
-1-507 
VIII. 
s.w. 
600 
679 
513 
0-16820 
9-696 
8 300 
27-485 
28-300 
-0 815 
IX. 
s.w. 
600 
309-8 
209-5 
0-17272 
4-424 
3-334 
12-609 
11-616 
+ 0-993 
x. 
w. 
1200 
922 
660-5 
0-16968 
6-583 
5-256 
18-689 
18-269 
+ 0-420 
XI. 
w. 
480 
250 
162-25 
0-16849 
4-452 
3-288 
12-686 
11-512 
+ 1-174 
XII. 
s.w. 
600 
521 
384 
0-16846 
7-440 
6-112 
21-110 
21-219 
-0-109 
XIII. 
s.w. 
600 
458 
320-5 
0-16785 
6"540 
5-101 
18-570 
17-736 
+ 0-834 
XIV. 
S.W. b. s. 
600 
473 
320 
0-16788 
6-754 
5-093 
19-174 
17-710 
+ 1-464 
XV. 
s. 
600 
432 
314-5 
0-16727 
6-056 
5-007 
17-205 
17-412 
-0-207 
XVI. 
s. 
600 
555 
437-5 
0-16864 
7-925 
6-963 
22-481 
24-450 
-1-969 
XVlI. 
S.E. 
600 
388 
302 
0-15962 
5-542 
4-817 
15-749 
16-720 
-0-971 
XVIII. 
S.E. 
600 
357-3 
268 
0-16041 
5-103 
4-266 
14-514 
14-870 
-0-356 
XIX. 
1200 
908 
725 
0-16274 
6-483 
5-770 
18-408 
20-037 
-1-629 
XX. 
s.w. 
660 
659 
495-5 
0-17775 
8-555 
7-169 
21-261 
22-902 
-1-641 
XXL 
W. b. s. 
600 
417 
291-5 
0-17795 
5-956 
4-639 
16-920 
16-152 
+ 0-768 
XXII. 
s.w. 
600 
459-5 
322 
0-17390 
6-561 
5-125 
18-632 
17-833 
+ 0-799 
XXIII. 
s.w. 
600 
362-5 
264 
0-17404 
5-176 
4-202 
14-726 
14-645 
+ 0-081 
* Time short because it was at the end of the chronograph sheet, 
