A PENDULUM FOR THE REDUCTION TO A VACUUM. 479 
Table I. — Continued. 
Pen- 
No. 
Disap- 
Re- 
appear 
ance. 
Coinci 
Arc. 
Thermometers. 
Baro- 
Rate. 
dul urn. 
pearance. 
deuce. 
Upper. 
Lower. 
meter. 
41 
Feb. 
16 1 
h m s 
r 23 55 44 
1 1 U 
s 
4 r, 
TT 
6 2 
43^0 
54,0 
0°89 
•19 
35°8 
35-8 
35°7 
35-8 
29-804 
29-780 
—0,60 
o 
42 
Feb. 
17 \ 
20 17 U 
22 50 U 
5 2 
1FF 
3 7 
tf 
46.0 
35.0 
•96 
•22 
360 
36-4 
360 
36-4 
0-890 
0-940 
—0,64 
43 
Feb. 
17 { 
22 53 -14 
1 26 44 
4 4 
T7 
3 9 
TT 
42.5 
37.5 
•96 
•21 
36-4 
369 
36-4 
370 
0- 940 
1- 000 
-0,66 
p 
crq 
fD 
44 
Feb. 
" { 
2 3 44 
3 9 u 
inr 
tt- 
21.5 
43.5 
■96 
•15 
38-1 
38-1 
38-4 
38-3 
29-842 
29-864 
—0,68 
<; 
o 
-i 
45 
Feb. 
18 { 
20 34 4f 
21 40 44 
4 3 
Tf 
TF 
39,5 
73,0 
•94 
•16 
39-4 
39-5 
39-2 
39-5 
30-202 
30-220 
-0,72 
Ul 
-a 
o 
c6 
46 
Feb. 
18 { 
22 35 ff 
4 3 
Ts' 
5 9 
FT 
40.5 
57.5 
•98 
•20 
38- 7 
39- 6 
38- 6 
39- 8 
0- 920 
1- 000 
-0,73 
47 
Feb. 
20 { 
22 30 44 
1 11 U 
2 4 
J5 9 
ITT 
23.0 
56.0 
•98 
•19 
379 
37-9 
3 7-5 
37-6 
1-540 
1-570 
-0,80 
48 
Feb. 
20 { 
1 58 41 
3 4 44 
36 
ft 
G 5 
34.5 
63.5 
•96 
•17 
38-8 
38-8 
38-7 
38-7 
30-326 
30-324 
-0,80 
49 
March 
8 { 
o 4 n 
5 25 A 
4 1 
TF 
4 1 
TF 
34.5 
27.5 
•86 
•21 
42-9 
42-8 
430 
42-5 
29-606 
29714 
—0,23 
50 
March 
8 { 
6 4 
12 31 a 
fi 9 
3 3 
fit 
65.0 
26.0 
•82 
•47 
42-0 
41-5 
420 
41-0 
1-000 
1T70 
—0,23 
Ox 
51 
March 
8 { 
12 33 4|- 
20 3 U 
3 9 
TF 
4 5 
TF 
33.5 
34.5 
•84 
•41 
41-7 
397 
41-4 
39-0 
M70 
1-270 
—0,22 
t 7* 
P 
crq 
52 
March 
9 { 
20 42 4 
1 644 
9 
G 9 
TF 
14.0 
60.0 
•80 
•29 
40-6 
402 
40-4 
39-8 
30-054 
30-124 
—0,22 
It 4 
o 
p 
p- 
53 
March 
9 { 
12 5 44 
19 48 u 
3 3 
ff 
3 5 
ff 
28,0 
38,5 
•86 
•10 
41-5 
39-0 
41 *1 
390 
30-340 
30-398 
-0,22 
w 
tr 1 
fD 
54 
March 
10 { 
20 28 4 
4 51 4 
1 3 
TF 
3 I 
77 
7,0 
11,5 
•87 
•39 
38-9 
40 0 
38-5 
400 
0- 950 
1- 150 
— 0;22 
fD 
55 
March 
10 { 
4 52 4§- 
12 43 if 
3 1 
FT 
6 3 
tnr 
25,5 
55,0 
•78 
•40 
40-0 
402 
40-0 
39-9 
1T50 
1 270 
—0,23 
56 
March 
» { 
21 15 44 
2 46 44 
6 5 
TTF 
7 7 
FF 
59.5 
63.5 
•83 
•20 
400 
400 
39-7 
39-8 
30-208 
30-126 
—0,24 
2 
O 
57 
April 
9 { 
19 40 -A- 
20 52 ff. 
2 4 
77 
12 0 
ITT 
18,0 
96,5 
•87 
T1 
49-5 
49-5 
49-0 
49-4 
30-254 
30-260 
+ 0,20 
o 
05 * 
*0 l-H 
tT 1 r 4 
58 
April 
9 { 
21 59 f 
0 37 4V 
1 C 
TF 
3 8 
FT 
10,5 
25,0 
•91 
•21 
48- 8 
49- 5 
48- 5 
49- 5 
1-080 
M80 
+ 0,20 
ft) p 
*-* 
ft) crq 
• CD 
59 
April 
9 { 
0 41 44 
3 37 4-4 
5 0 
T? 
TF 
46.0 
49.0 
•91 
•14 
49-5 
507 
49-5 
506 
1-180 
1-280 
+ 0,20 
O 
*< 
60 
April 
8 { 
4 10 44 
5 23 44 
68 
TF 
1 1 5 
TTF 
63.0 
83.0 
•89 
•11 
520 
52-0 
52-2 
52-0 
30-230 
30-232 
+ 0,20 
o 
61 
April 
10 { 
20 3 44 
23 17 44 
G G 
FT 
5 1 
FT 
60,5 
46,0 
•87 
•20 
48-8 
490 
48-3 
48-5 
30-268 
30-244 
+ 0,23 
00 
CQ ’ 
. 
62 
April 
10 { 
0 10 |4 
5 26 if 
6 3 
FF 
6 1 
FT 
57,5 
54,0 
•90 
•38 
48-3 
500 
48-3 
500 
0- 930 
1- 170 
+ 0,23 
t” 4 
fD pj 
? crq 
fo ; 
63 
April 
10 { 
5 28 4- 
12 18 4 
i f» 
TT 
3 7 
FIT 
12,0 
15,5 
•90 
•36 
500 
49-5 
500 
49-0 
M70 
1-430 
+ 0,23 
t- 4 
fD 
P 
P- 
64 
April 
» { 
20 3 +f 
23 16 4 
3 3 
77 
3 3 
TF 
17,5 
14,0 
•90 
•19 
48-1 
48-5 
47- 5 
48- 3 
30-214 
30-184 
+ 0,20 
3 q 2 
