A Voyage to Terra Australis/Volume 2/Appendix 1

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APPENDIX.



APPENDIX.



No. I.

Account of the observations by which the Longitudes of places on the east and north coasts of Terra Australis have been settled.

In the Appendix to Vol. I. a statement was made of the circumstances under which the observations for settling the longitudes of places on the South Coast were taken; as also of the method used in the calculations, and the corrections applied more than what is usual in the common practice at sea. That statement is equally applicable to the following tables for the East and North Coasts, and the explanation of their different columns is the same; a reference therefore to the former Appendix will render unnecessary any further remark on these heads.

The first observations on the East Coast were taken at Port Jackson, and the results would naturally form the first table of this Appendix; but these observations being so intimately connected with those on the South Coast that the time keepers could not receive their final corrections without them, the Port-Jackson table became an indispensable conclusion to the former series; and it is thought unnecessary to repeat it in this place.

TABLE I. (Reference from page 31.)

Longitude of the Anchorage in Keppel Bay.

Appt. Greenwich time of the observations. Place. Longit. E. from Naut. Alm. Reduction by survey. E. Longitude of the anchorage. Correction Correct Longit. of the anchorage. Whence deduced. Observer.
for errors of tables Interv. of ☽'s error.
°  ″ °  ″ °
1802 Aug.
ʰ    ′
6 at 15 45
 
 
 
 
At anchor,
Port Curtis.



151
151
151
151
151
151
26
28
38
34
33
27
45
30
45
30
30
45
−22  0




151
151
151
151
151
151
 4
 6
16
12
11
 5
45
30
45
30
30
45
−10 15




Two days.




150
150
151
151
151
150
54
56
 6
 2
 1
55
30
15
30
15
15
30
☉ W. ☾




F




8 at 18 30 At anchor,
Keppel Bay.



151
151
151
151
151
151
 6
 2
11
 8
 5
 4
15
45
15
30
 0
30
151
151
151
151
151
151
 6
 2
11
 8
 5
 4
15
45
15
30
 0
30
− 6 30




Ditto.




150
150
151
151
150
150
59
56
 4
 2
58
58
45
15
45
 0
30
 0
Ditto.




F




20 at 11 15 Under sail off Port Bowen.



150
150
150
150
150
150
45
52
51
44
54
58
15
 0
30
45
45
45
+11 11




150
151
151
150
151
151
56
 3
 2
55
 5
 9
26
11
41
56
56
56
− 9 30




One day.




150
150
150
150
150
151
46
53
53
46
56
 0
56
41
11
26
26
26
☉ E. ☾




F




21 at  9 45 Entrance I. in Port Bowen.


151
151
151
151
151
151
 8
 8
 3
 1
10
10
45
30
45
30
15
15
+13 20




151
151
151
151
151
151
22
21
17
14
23
23
 5
50
 5
50
35
35
−10 45




Two days.




151
151
151
151
151
151
11
11
 6
 4
12
12
20
 5
20
 5
50
50
Ditto.




F




Mean of 24 sets, uncorrected 151  9  42,7 Corrected 151  0  27,7
Longitude of the anchorage by the two time keepers, from the uncorrected Port-Jackson rates, was
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
150° 57′ 43″ east.
But from the observations at Upper Head (in the following table), reduced by the survey to the anchorage, the longitude preferred to both the above is
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
150 58 20 east.

TABLE II. (Reference from page 73.)

Longitude of Upper Head, in Broad Sound.

Appt. Greenwich time of the observations. Place. Longit. E. from Naut. Alm. Reduction by survey. East Longitude of Upper Head. Correction Correct Longit. of Upper Head. Whence deduced. Observer.
for errors of tables Interv. of ☽'s error.
°  ″ °  ″ °
1802 Sept. 

ʰ    ′ 
2 at 12 45
 
 
 
At anchor near Aken's I. Shoalwater Bay.


150
150
150
150
150
150
35
37
25
33
35
25
 0
 0
45
45
45
30
−29  7




150
150
149
150
150
150
 5
 7
56
 4
 6
56
53
53
38
38
38
23
− 6 45




As on Sep. 4, there being no observ. at Greenwich since Aug. 22. 149
150
149
149
149
149
59
 1
49
57
59
53
 8
 8
53
53
53
38
☉ W. ☾




F




— at 16 14 Ditto.




150
150
150
150
150
150
19
16
18
18
21
29
45
45
45
45
30
45
−29  7




149
149
149
149
149
150
50
47
49
49
52
 0
38
38
38
38
23
38
− 6 45




Ditto.




149
149
149
149
149
149
43
40
42
42
45
53
53
53
53
53
58
53










4 at 17  0 On Pier Head, Thirsty Sound.









149
149
149
149
150
150
150
149
149
149
149
149
149
46
44
49
46
 7
 0
 6
52
58
53
55
55
57
15
30
15
 0
30
45
45
 0
30
15
15
15
30
−13 15











149
149
149
149
149
149
149
149
149
149
149
149
149
33
37
36
32
54
47
53
38
45
40
42
42
44
 0
15
 0
45
15
30
30
45
15
 0
 0
 0
15
− 7  0











Ditto.











149
149
149
149
149
149
149
149
149
149
149
149
149
26
24
29
25
47
40
46
31
38
33
35
35
37
 0
15
 0
45
15
30
30
45
15
 0
 0
 0
15
























Longitude from ☉ west ☾, uncorrected 149 49   9,8 Corrected 149 42  17,1

TABLE II. (continued.)

Longitude of Upper Head, in Broad Sound.

Appt. Greenwich time of the observations. Place. Longit. E. of Upper Head from Naut. Alm. Correction Correct Longit. of Upper Head. Whence deduced. Observer.
for errors of tables Interv. of ☽'s error.
°  ″ °
1802 Sept. 

ʰ    ′ 
18 at 10 45
 
 
 
At Upper Head.



150
149
149
149
150
150
 6
54
54
57
 8
20
15
45
30
45
 0
15
−23 45




One day.




149
149
149
149
149
149
42
31
30
34
44
56
30
 0
45
 0
15
30
☉ E. ☾




F




— at 11 45 Ditto.




150
150
150
150
150
150
13
 7
10
16
18
15
 0
30
45
15
15
15
−24 15




Ditto.




149
149
149
149
149
149
49
42
46
52
54
51
15
45
15
30
 0
 0










21 at 10  0 Ditto.











150
150
150
150
150
150
150
150
150
150
150
150
150
16
12
24
18
14
23
17
14
16
21
12
20
17
15
 0
30
15
30
 0
45
45
15
 0
45
45
15
−19 45











Two days.











149
149
150
149
149
150
149
149
149
150
149
150
149
56
52
 4
58
54
 3
58
55
56
 1
53
 1
57
30
15
45
30
45
15
 0
 0
30
15
 0
 0
30
























Longit. from ☉ E. ☾, uncor. 150 13  16,2 Corrected 149 51  28,8
Longit. from ☉ W. ☾, uncor. 149 49   9,8 149 42  17,1
Means of fifty sets, of lunar distances. uncor. 150  1 13, Corrected 149 46 53, and taken

TABLE III. (Reference from page 148.)

Longitude of Sweers' Island, Gulph of Carpentaria.

Appt. Greenwich time of observations. Place. Longit. E. from Naut. Alm. Reduction by T.K. No. 520 (Up. Hd. rate.) E. Longitude of Sweers' I. Correction Correct Longit. of Sweers' I. Whence deduced. Observer.
for errors of tables Interv. of ☽'s error.
° ° °  ″ °
1802 Nov. 



ʰ    ′ 
1 at 18 24
At anchor under Good's I.





142
142
142
142
142
142
142
142
142
26
17
18
18
20
18
39
34
24
15
30
45
30
45
15
45
15
15
−2 24 46







140
139
139
139
139
139
140
140
139
 1
52
53
53
55
53
14
 9
59
29
44
59
44
59
29
59
29
29
− 2 15







As on Nov. 3, there being no obs. at Greenwich since Oct. 22.


139
139
139
139
139
139
140
140
139
59
50
51
51
53
51
12
 7
57
14
29
44
29
44
14
44
14
14
☉ W. ☾







F







2 at 19 15 Under sail in the Gulph





141
141
141
141
141
141
141
141
141
54
43
59
51
44
41
37
38
42
 0
 0
15
15
 0
 0
 0
15
 0
−2  5  9







139
139
139
139
139
139
139
139
139
48
37
54
46
38
35
31
33
36
51
51
 6
 6
51
51
51
 6
51
− 1 45







Ditto.







139
139
139
139
139
139
139
139
139
47
36
52
44
37
34
30
31
35
 6
 6
21
21
 6
 6
 6
21
 6
Ditto.








C

F




14 at 11 30 Ditto,




141
141
141
141
141
141
 4
11
16
13
16
 5
45
15
15
 0
 0
45
−0 44 48




140
140
140
140
140
140
19
26
31
28
31
20
57
27
27
12
12
57
−31 45




As on 14th, there being no obs. at Greenwich until Dec. 2. 139
139
139
139
139
139
48
54
59
56
59
49
12
42
42
27
27
12
☉ E. ☾




F




ʰ    ′ 
15 at  9 30

Under sail in the Gulph. 140
140
140
37
38
32
 0
15
 0
−15 45

140
140
140
21
22
16
15
30
15
−33  0

As on Nov. 14, there being no obs. at Greenwich until Dec 2.





139


48
49
43
15
30
15
☉ E. ☾

F

16 at 12 30 At anchor under Sweers' I.





140
140
140
140
140
140
140
140
140
14
13
11
10
 3
 7
16
23
23
30
30
 0
 0
30
45
30
45
15
140
140
140
140
140
140
140
140
140
14
13
11
10
 3
 7
16
23
28
30
30
 0
 0
30
45
30
45
15
−33 45







139








40
39
37
36
29
34
42
50
49
45
45
15
15
45
 0
45
 0
30
Ditto.







F







December. 
ʰ    ′ 

3 at 20  0
At anchor under Bountiful I.



139
140
139
139
139
139
42
 2
52
59
56
48
45
30
 0
45
15
 0
−14  8




139
139
139
139
139
139
28
48
37
45
42
33
37
22
52
37
 7
52
− 7 15




One day.




139





21
41
30
38
34
26
22
 7
37
22
52
37
☉ W. ☾




F




Mean of forty-two sets, uncorrected 140  0  52,9 Corrected 139 44 52 and taken
From observations west of the moon alone
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
139° 43′ 59″,2
east of the moon alone
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
139 46  2 ,3
Mean 139 45  0 ,7 east.

TABLE IV. (Reference from p. 174.)

Longitude of Observation Island, Sir E. Pellew's Group.

Appt. Greenwich time of observations. Place. Longit. E. from Naut. Alm. Reduction by survey. East Longitude of the Island. Correction Correct Longit. of the Island. Whence deduced. Observer.
for errors of tables Interv. of ☽'s error.
°  ″ °  ″ °
1802 December. 
ʰ    ′ 

14 at 11 45
At anchor near Cape Vanderlin.



137





55
54
49
41
40
37
45
 0
15
45
 0
30
− 9 25




137
137
137
137
137
137
46
44
39
32
30
28
20
35
50
20
35
 5
−30 15




One day.




127
137
137
137
137
136
16
14
 9
 2
 0
57
 5
20
35
 5
20
50
☉ E. ☾




F




Mean of six sets, uncorrected 137 36  57,5 Corrected 137  6  42,5

Longitude of the island by time keeper, No. 543.

On Dec. 15 at 18ʰ 33′ of Greenwich time, and using the error and rate of Sweers' Island, the longitude by this time keeper was
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
137°  3′ 39″,7
Correction for variation in the rate, found at Observation I.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 0 24 ,9
Corrected longitude, taken preferably to that above
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
137  3 14 ,8 east.

TABLE V. (Reference from p. 191.)

Longitude of Finch's Island, in N.W. Bay—Groote Eylandt.

° °  ″ °
1803 Jan. 
ʰ    ′ 

14 at 13  3
On the island.



136
136
136
136
136
137
56
55
54
58
53
 0
 0
45
15
45
45
45
136
136
136
136
136
137
56
55
54
58
53
 0
 0
45
15
45
45
45
−17 45




As on Jan 12, there being no obs. at Greenwich until the 29th. 136
136
136
136
136
136
38
38
36
41
36
43
15
 0
30
 0
 0
 0
☉ E. ☾




C




15 at 13  3 Ditto.










136
136
136
136
136
137
136
136
136
136
136
136
42
40
42
41
37
38
39
42
43
45
42
41
45
45
30
 0
30
 0
15
 0
45
45
45
30
136
136
136
136
136
136
136
136
136
136
136
136
42
40
42
41
37
38
39
42
43
45
42
41
45
45
30
 0
30
 0
15
 0
45
45
45
30
−17 30










Ditto.










136
136
136
136
136
136
136
136
136
136
136
136
25
23
25
23
20
20
21
24
26
28
25
24
15
15
 0
30
 0
30
45
30
15
15
15
 0
Ditto.










F










Mean of eighteen sets, uncorrected 136 46 29 Corrected 136 28 54
Longitude of Finch's Island by the survey reduced back from Caledon Bay, and preferred to the above, is
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
136° 36′ 53″ east

TABLE VI. (Reference from page 216.)

Longitude of the Tents in Caledon Bay.

Appt. Greenwich time of observation. Place. E. Longit. E. of Tents from Naut. Alm. Correction Correct. East Longit. of the Tents. Whence deduced. Observer.
for errors of tables Interv. of ☽'s error.
°  ″ °
1803 Feb. 

ʰ    ′ 
4 at  0 15
 
 
 
At the tents: sextant on a stand.



136
136
136
136
136
136
56
53
49
52
54
50
45
 0
45
 0
30
 0
−15  0




One day.




136
136
136
136
136
136
41
38
34
37
39
35
45
 0
45
 0
30
 0
Aldeb. west ☾



F




4 at  2  0 Ditto.




136
136
136
136
136
136
49
48
49
43
49
50
30
30
45
30
15
 0
−14 30




Ditto.




136
136
136
136
136
136
35
34
35
29
34
35
 0
 0
15
 0
45
30
Regul. east ☾



F




Mean, uncorrected 136 50  32,5 Corrected 136 35  47,5 and taken.
From observations west of moon alone
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
136° 37′ 40″
east of moon alone
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
136 33 55
Mean 136 35 47,5 east.

TABLE VII. (Reference from page 259.)

Longitude of the anchorage in Coepang Bay, Timor.

Appt. Greenwich time of observation. Place. Longit. E. from Naut. Alm. Reduction by T.K. No. 543. East Longitude of the anchorage. Correction Correct Longit. of the anchorage. Whence deduced. Observer.
for errors of tables Interv. of ☽'s error.
° ° °  ″ °
1803 March. 

ʰ    ′ 
14 at 12 30
 
 
 
Under sail.


131
131
131
131
50
59
44
46
30
 0
15
30
−8  8 39


123
123
123
123
41
50
35
37
51
21
36
51
−18 45


As on the 12th, there being no observation at Greenwich till the 29.

123
123
123
123
23
31
16
19
 6
36
51
 6
☉ E. ☾


F


15 at 12 30 Ditto.


130
130
130
130
53
53
59
56
15
 0
 0
15
−7 12 36


123
123
123
123
40
40
46
43
39
24
24
39
−17 45


123
153
123
123
22
22
28
25
54
39
39
54
Ditto.


C


16 at 12 30 Ditto.


130
130
130
130
42
46
50
54
 0
 0
 0
45
−7  4 51


123
123
123
123
37
41
45
49
 9
 9
 9
54
−16 45


Ditto.


123
123
123
123
20
24
28
33
24
24
24
 9
Ditto.


F


27 at 16 45 Ditto.


126
126
126
126
 2
 6
 3
 5
45
 0
30
 0
−2 12 57


123
123
123
123
49
53
50
52
48
 3
33
 3
−13 45


One day.


123
123
123
123
36
39
36
38
 3
18
48
18
☉ W. ☾.


C


28 at 17 30 Ditto.


125
125
125
125
25
31
28
31
15
 0
30
15
−1 34 48


123
123
123
123
50
56
53
56
27
12
42
27
−14 45


Two days.


123
123
123
123
35
41
38
41
42
27
57
42
Ditto.


F


29 at 18 45 Ditto.


124
124
124
124
31
21
16
21
15
30
30
30
−0 34 42


123
123
123
123
56
46
41
46
33
48
48
48
−16 15


Ditto.


123
123
123
123
40
30
25
30
18
33
33
33
Ditto.


F


April. 

3 at  3ʰ 15′


At anchor in the Bay.



124
124
124
124
124
124
 6
13
17
16
12
11
15
45
30
45
30
30
124
124
124
124
124
124
 6
13
17
16
12
11
15
45
30
45
30
30
−22 45




One day.




123
123
123
123
123
123
43
51
54
54
49
48
30
 0
45
 0
45
45
* Spic. V. east ☾



F




TABLE VII. continued.

Longitude of the anchorage in Coepang Bay, Timor.

Appt. Greenwich time of the observations. Place. E. Long. of the anchorage from Naut. Alm. Correction Cor. Longitude of the anchorage. Whence deduced. Observer.
for errors of tables Interv. of ☽'s error.
°  ″ °
1803 April. 

ʰ    ′ 
4 at  0 45
At anchor in the Bay.



123
123
123
123
123
123
37
37
46
50
42
40
30
 0
30
15
 0
30
−23 30




One day.




123
123
123
123
123
123
14
13
23
26
18
17
 0
30
 0
45
30
 0
* Pollux west ☾



F




5 at  2 25 Ditto.




124
124
124
124
123
124
 8
10
 7
 3
59
 2
 0
15
15
 0
30
45
−21 15




Ditto.




123
123
123
123
123
123
46
49
46
41
38
41
45
 0
 0
45
15
30
* Regul. west ☾



F




5 at  2 56 Ditto.




124
124
124
124
124
124
 1
 5
12
 6
 9
13
 0
45
15
15
30
30
−21 15




Ditto.




123
123
123
123
123
123
39
44
51
45
48
52
45
30
 0
 0
15
15
* Antar. east ☾



F




7 at  2 31 Ditto.

123
123
123
53
52
54
45
15
45
−19  0

Six days.

123
123
123
34
33
35
45
15
45
* Regul. west ☾
F

7 at  2 58 Ditto.

124
124
124
 3
 3
 7
45
 0
15
−19  0

Ditto.

123
123
123
44
44
48
45
 0
15
* Antar. east ☾
F

Mean of fifty-four sets, uncorrected
123 55   0,1 Corrected 123 35  46,2 and taken.
°
From observations east of the moon alone 123 37 39,1
west of the moon alone 123 33  5,2
123 35 46,2 east.

TABLE VIII. (Reference from page 330.)

Longitude of Wreck-Reef Bank, lying off the East Coast.

Appt. Greenwich time of the observation. Place. E. Longit. of the Bank from Naut. Alm. Correction. Cor. Long. of the Bank. Whence deduced. Observer.
for errors of tables Interv. of ☽'s error.
°  ″ °
1803 Aug. 

ʰ    ′ 
27 at 17  0
 
 
 
The Bank.
 
 
 
 
 
155
155
155
155
155
155
38
43
42
41
37
35
45
45
 0
30
30
15
−17 15




One day.




155
155
155
155
155
155
21
26
24
24
20
18
30
30
45
15
15
 0
☉ W. ☾




F




September 


8 at 10ʰ 45′
 
 
 
155
155
155
155
155
155
29
24
27
28
19
19
 0
45
 0
45
15
30
−10 45




Ditto.




155
155
155
155
155
155
18
14
16
18
 8
 8
15
 0
15
 0
30
45
☉ E. ☾




F




11 at 11 30 155
155
155
155
155
155
43
40
41
38
32
27
 0
30
45
15
45
45
−15 30




Two days.




155
155
155
155
155
155
27
25
26
22
17
12
30
 0
15
45
15
15
Ditto.




F




21 at 14 30 155
155
155
155
155
155
155
155
155
155
155
155
39
44
51
55
57
57
53
52
51
51
47
45
15
45
45
45
30
30
30
15
30
 0
45
45
−26  0










As on the 24th, there being no observ. at Greenwich between the 12th and 24th.




155
155
155
155
155
155
155
155
155
155
155
155
13
18
25
29
31
31
27
26
25
25
21
19
15
45
45
45
30
30
30
15
30
 0
45
45
☉ W. ☾










F










1803 Sept. 

ʰ    ′ 
28 at 21 30
 
 
 
The Bank.
 
 
 
 
 
155
155
155
155
155
155
42
47
45
44
38
32
30
 0
15
 0
45
 0
−11 45




One day.




155
155
155
155
155
155
30
35
33
32
27
20
45
15
30
15
 0
15
* Antar. west ☾



F




30 at 22 25 155
155
155
155
155
155
31
12
16
14
17
14
 0
30
15
30
15
45
−10 15




Ditto.




155
155
155
155
155
155
20
 2
 6
 4
 7
 4
45
15
 0
15
 0
30
* Altair. west ☾



F




October. 



ʰ    ′ 
5 at  9 30





155
155
155
155
155
155
155
155
155
155
155
155
44
48
37
36
40
34
30
39
27
40
37
42
 0
 0
30
15
15
45
45
 0
45
 0
15
15
−17 45










Three days.










155
155
155
155
155
155
155
155
155
155
155
155
26
30
19
18
22
17
13
21
10
22
19
24
15
15
45
30
30
 0
 0
15
 0
15
30
30
☉ E. ☾










F










6 at 10  0 155
155
155
155
155
155
29
20
17
20
23
26
15
 0
15
15
45
45
−20 15




Ditto.




155
154
154
155
155
155
 9
59
57
 0
 3
 6
 0
45
 0
 0
30
30
Ditto.




F




Mean of 60 sets, uncor. 155 36 10 Corr. 155 18  50,5 and taken
° ″ 
From observations west of the moon alone
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
155 21 50,5
east of the moon alone
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
155 15 50,5
Mean 155 18 50,5 east.

TABLE IX. (Reference from p. 417.)

Longitude of the Garden Prison, 1′ N.E. from Port Louis—Mauritius.

Appt. Greenwich time of the observation. Place. E. Longit. of the Prison from Nt. Alm. Correction. Corr. Longit. of the Prison. Whence deduced. Observer.
for errors of tables Interv. of ☽'s error.
1804 April  °  ″ °
20 at  5ʰ 30′
5  52 
In the Prison. 57
57
51
32
15
15
−16 45
Err. taken as obs. on 20 57
57
34
15
30
30
* Spic. Vir east of ☾
* Pollux west of ☾
C
21 at  4 58


57
57
58
57
42
43
 5
56
15
15
30
45
−17  0


Ditto, there being no other until May 1.
57
57
57
57
25
26
48
39
15
15
30
45
* Regul.
west ☾
* Antar.
east ☾



June 
15 at  2ʰ 51′
 


57
58
57
50
 3
58
15
 0
30
−23 45

As obs. on 15.
57
57
57
26
39
34
30
15
45




— 3 10

57
57
57
57
54
51
30
15
 0




57
57
57
33
30
27
45
30
15
* Regul.
west ☾


1805 March
12 at  5ʰ 16′
 


57
57
57
46
39
31
15
15
30
−17 30

As obs. on the 12th.
57
57
57
28
21
14
45
45
 0
* Aldeb.
west ☾


5 28

57
57
57
47
46
50
30
 0
 0
−17 15



57
57
57
30
28
32
15
45
45
* Spic. Vir.
east ☾


April. 

20 at 17ʰ 32′







57
57
57
57
57
57
53
53
55
54
53
53
15
15
 0
 0
45
 0
−14 15




Three days.




57
57
57
57
57
57
39
39
40
39
39
38
 0
 0
45
45
30
45
☉ east ☾









May 
5 at 23ʰ 36′
 


57
57
57
49
33
32
 0
15
 0
−20  0

As obs. on the 5th.
57
57
57
29
13
12
 0
15
 0
☉ west ☾



Mean of 27 sets, uncor. 57 48  59,4 Corrected 57 30  42,2 and taken
° ″ 
From observations east of the moon alone
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
56 36 47
west of the moon alone
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
57 23  6,2
Mean 57 29 56,6 east.

TABLE X.

Variations of rate and errors in longitude, made by one or both of Earnshaw's time keepers, No. 543 and No. 520, during the circumnavigation of Terra Australia, and from Port Jackson to the island Mauritius.
Departure taken. Rates of time keepers losing. Variations of rate. Errors in long. on arriving. Daily part of
supplemental errors.
Place. Longit. East No. 543 No. 520. Mean. During the passage. Number of days. Daily acceleration. With rate
before found.
With rate
accelerated.
° ″   ″   ″    ″
Port Jackson 151 11 49  8,63 19,52 14,075
Keppel Bay 150 58 20 As at Port Jackson ″    ″      ′  ″  ′  ″  ″
Broad Sound 149 46 53  9,62 21,41 15,515 1,44 27,7 0,052  7 14 E.  2  3,6 E.  4,46 E.
Sweers' I. 139 44 52 21,47 First rate 0,06 51,9 Not used.  2 50,2  3,28
14,74
(The time keepers were let down in this passage, and set going with the difference of time allowed.)
Observ. I. 137  3 14,8 14,93 0,19 16,4 0,0116  0 24,9  0
Connexion I. 136 24 50 Not ascertained. 10,   2 41 16,1
Bustard Isles 136 26 43 As at Observation I.
Caledon Bay 136 35 47,5 16,53 1,60 16,9 0,0947  4 35  0 59,5  3,52
Coepang Bay 123 35 46,2 16,73 33,99 25, 36 0,20 51,3 0,0039  3 22,2  2  3,7  2,41
Goose. I. Bay 123  9 37,6 19,63 34,07 26, 85 1,49 40,2 0,0371 19 52,4 12 11,6 18, 2
Port Jackson 151 11 49 First rates not known 19,9  5 42,5 17, 2
33,38 Latter rate
Wreck Reef 155 18 50,5 34,08 After shipwreck 26,  Not used 14 35,9 W. 33, 7 W.
34,13 Latter rate
Coepang Bay 123 35 46,2 36,74 2,61 36,2 0,0721 12 48 E.  0 40,   1, 1 E.
Port Louis  57 29 57 36,90 0,16 35,  Not used 10 43,5 18, 4

The irregularity of this table, compared with Table VII. of the Appendix to Vol. I., arises from its having been sometimes found advisable to make use of one time keeper in preference to both,—from some stations being fixed by the survey where no rates are found,—and latterly from No. 543 having stopped. In other respects, the explanation which follows the former table will generally apply here.