1020 
THE VOYAGE OF H.M.S. CHALLENGER. 
TABLE I, — Abstract of the daily rates of the Chronometers used for calculating Meridian Distances in ' 
on different days at the same obsei 
Places where rated. 
Date. 
Number 
of days 
Vfean Temp. 
Chronometer 
Boom 
BATES OF THE CH: 
during rating 
period. 
Z 
A 
B 
C 
D 
E 
F 
Portsmouth. 
20/12/72 
11 
53°-0 
-3-400 
- 0-900 
s. 
+ 9-610 
-3-964 
+6-220 
+0+00 
- 7D10 
Lisbon. 
12/ 1/73 
8 
60°-0 
-3-008 
-4-640 
+12-760 
-3-770 
+6-236 
+1-140 
-8-940 
Gibraltar. 
25/ 1/73 
7' 
60°-5 
-2-956 
-5-206 
+14-760 
-3-384 
+6-580 
. +1-544 
-9-077 
Tenerife. 
14/ 2/73 
6 
64° -0 
-2-973 
- 6T40 
+17-527 
-3-282 
+6-427 
+2-493 
-8-823 
St. Thomas. 
24/ 3/73 
6 
77°-5 • 
-3-313 
- 7T47 
+24-112 
- 3-972 
+4-070 ' 
+1-203 
-10-747 
Bermuda. 
11/ 4/73 
6 
72°-5 
-3-171 
-7-047 
+24-487 
-3-905 
.+4-520 
+ 1-903 
-9-788 
Do. 
19/ 4/73 
8 
69°-5 
-2-852 
-6-771 
+ 24-366 
- 3-740 
+ 4-366 
+2-729 
-9-352 
Halifax. 
19/ 5/73 
9 
52°-£> 
-2-933 
-4-617 
+23-928 
-3-761 
+ 4-189 
+2-066 
-6-717 
Bermuda. 
12/ 6/73 
10 
76° -0 
-3-342 
-7-952 
+24-973 
- 4-142 
+5T13 
+1-868 
-9-782 
St. Vincent. 
3/ 8/73 
6 
78° -0 
-17-815 
-10-632 
+26-510 
-4-707 
+6-493 
+1-618 
-10-132 
Bahia. 
22/ 9/73 
6 
78°-0 
-21T98 
+26-952 
-5-048 
+7-360 
+ 1-901 
-9-532 
Do. 
25/ 9/73 
9 
78°-0 
-21-421 
+26-951 
- 5-104 
+7-551 
+1-807 
-9-549 
Cape of Good Hope. 
7/11/73 
6 
64° -0 
-20-868 
+28-115 
-4-101 
+8-032 
+3-257 
-5-676 
Do. 
21/11/73 
14 
66° -0 
-20-666 
+27-187 
-4-252 
+ 8-055 
+3-308 
-6-159 
Do. 
11/12/73 
8 
65°-0 
-20-537 
+27-775 
-4-263 
+7-963 
+3-312 
- 5-725 
Do. 
16/12/73 
5 
66° -0 
-20-908 
+ 27-462 
-4-218 
+ 7-802 
+3-282 
-6-098 
Elizabeth Harbour, Kerg. I. 
15/ 1/74 
5 
52° -0 
- 19-382 
+27-358 
-3-942 
+7-438 
+2-678 
-6-242 
Christmas H arbour, Kevg.I. 
30/ 1/74 
23 
51° -0 
- 19-455 
+ 27-499 
- 4-026 
+7-358 
+ 1-238 
-6-068 
Melbourne. 
30/ 3/74 
12 
64 o, 0 
-20-986 
+ 28-431 
-3-777 
+8-306 
+0-589 
-7-669 
Sydney. 
13/ 4/74 
6 
72° -0 
-22-507 
+28-718 
-4-332 
: +8-027 
+0-510 
-8-765 
Do. 
11/ 5/74 
28 
69°-0 
-22-132 
+ 29-425 
-3-989 
+8-316 
+ 1-486 
-8-255 
Do. 
18/ 5/74 
7 
64°-0 
-22-133 
+ 29-710 
-3-526 
+8-367 
' ' +1-588 
-7-297 
Do. 
1/ 6/74 
14 
62° -0 
-21-758 
+29-542 
- 3-465 
+8-374 
+ 1-788 
-7-212 
Do. 
8/ 6/74 
7 
60° -0 
-21-100 
+29-628 
- 3-821 
-+8-336 
+ 2-074 
- 6-636 
Wellington. 
5/ 7/74 
6 
58° -0 
-19-783 
+30-953 
-3-417 
+ 8-793 
+1-110 
-5-900 
Ngaloa Harbour. 
9/ 8/74 
13 
78°-0 
-23-929 
+29-863 
-4-272 
'+8-409 
+ 4-352 
-8-783 
Cape York. 
8/ 9/74 
5 
81° -0 
-25-634 
+30-426 
-5-214 
+7-926 
+3-086 
-10-014 
Arrou Islands. 
22/ 9/74 
5 
83° ‘0 
-26-234 
+30-696 
- 5-104 
+7-836 
+ 3-436 
-11-164 
Amboina. 
I 10/10/74 
5 
83° -0 
-28-116 
+30-654 
-4-946 
+7-934 
+4-034 
-11-726 
Manila. 
11/11/74 
6 
84° -0 
-34-113 
'+ 30-887 
-4-363 
+ 8-595 
+ 3-720 
-11-655 
Hong Kong. 
24/11/74 
7 
72°-0 
-32-796 
+32-193 
-3-188 
+ 9-147 
+ 5-340 
-7-846 
Do. 
5/12/74 
11 
67° -0 
-31-793 
+32-057 
-2-893 
+8-662 
+ 3-762 
-6-315 
Do. 
15/12/74 
10 
69° -0 
-31-871 
+ 31-139 
-3096 
+ 8-629 
+ 4-689 
-6-611 
Do. 
27/12/74 
12 
72° -0 
-32-189 
+ 30-723 
-3-202 
+ 8-761 
+ 6-852 
-6-789 
Do. 
4/ 1/75 
8 
64°-5 
-31-191 
+31-009 
- 2-529 
+ 8-959 
+ 1-327 
-6-347 
Zebu. 
24/ 1/75 
5 
82° -0 
-35-236 
+ 30-454 
-3-596 
+8-494 
+ 3-054 
-9-796 
Samboangan. 
5/ 2/75 
7 
82°-5 
- 35-110 
.+31-226 
- 3-438 
+8-440 
+ 1-793 
-9-810 
Hares Harb. , Admiralty Is. 
10/ 3/75 
6 
83°-5 
-37-345 
+31-938 
-3-395 
+ 7-988 
+ 1-205 
-11-262 
Yokohama. 
18/ 4/75 . 
4 
62°-5 
-30-885 
+32-715 
-1-848 
+9-302 
+ 1-265 
—6-572 
Do. 
22/ 4/75 
4 
61°-0 
-30-818 
+32-482 
-1-218 
+ 9-220 
+ 0-982 
-5-842 
Do. 
4/ 5/75 
.12 
61°-0 
-30-826 
+32-362 
-0-238 
+ 9-074 
+ 1-787 
-5-592 
Do. 
7/ 6/75 . 
34 
69° ‘0 - 
-32-794 
+31-394 
-0-484 
+9-082 
1 +3-697 
-7-237 
Do. 
14/ 6/75 
7 
73°-5 
-33-941 
+ 32-637 
- 1-834 
+9-258 
- --2-687 
- 9-027 
Honolulu. 
4/ 8/75 
7 
80° -5 
-35-416 
+31-921 
-5-557 
+9-350 
+ 1-257 
-10-807 
Do. 
10/ 8/75 
6 
■81°-5 
-36-200 
+31-866 
-5-466 
+ 9-017 ' 
+1-625 
-10-457 
Tahiti. 
1/10/75 
9 
80 o, 0 
- 34T17 
+32-078 
-5-139 
+ 9-384 
+ 1-628 
-9-094 
Valparaiso. 
27/11/75 
7 
67°-0 
-33-011 
+33-060 
-3-490 
+9-060 
+ 1-724 
-5-740 
Do. 
4/12/75 
7 
66° -0 
-32-393 
+32-844 
-2-570 
+ 9-287 
+2T16 
-5-320 
Do. 
9/12/75 
5 
66°-0 
-32-038 
+ 33T52 
-2-198 
+ 9-512 
+ 2-532 
-4-878 
Sandy Point. 
17/ 1/76 
3 
57°-5 
-31-983 
+33-242 
-2-673 
+ 9T27 
+1-877 
-5-340 
Port Stanley, Falkland Is. 
31/ 1/76 
6 
57°-5 
-31-556 
+ 32-969 
-3-096 
+ 8-764 
+ 1-337 
-5-359 
Do. 
6/ 2/76 
6 
56°-5 
-31-061 
+32-218 
-1-391 
+9-990 
+ 1-727 
- 4-425 
Monte Video. 
24/ 2/76 
8 
71°-0 
-33-689 
+ 33-217 
-3-657 
+9-292 
+ 2-305 
-6-594 
Ascension. 
2/ 4/76 
5 
83°-0 
-37-088 
+ 33-092 
- 5-258 
+ 8-862 
+1-202 
-9-698 
St. Vincent. 
25/ 4/76 
5 
75° '0 
-34-522 
+33-088 
- 4T82 
+11-078 
+1-518 
-7-542 
