YALUE OF AUSTRALIAN LONGITUDES. 
207 
APPENDIX. 
Table I. 
Refer- 
ence 
Letter. 
(a) 
to) 
to) 
to) 
to 
If) 
(A) 
(ff) 
toi) 
to) 
to) 
(i l ) 
to) 
(*i) 
ton) 
s, 
(mi) 
(n) 
(o) 
b) 
to) 
M 
(*T) 
(*Ti) 
(«) 
« 
(«i) 
On) 
(w) 
M 
M 
(®l) 
(«) 
(y) 
(*l) 
W 
Difference 
of Longitude. 
h. m. sec. sec. 
2 05 00 ‘240 ±0‘098 
0 05 32*550 ±0122 
0 53 34 805 
0 04 28-310 ±0-058 
1 01 30-646 ±0-030 
1 05 58-750 ±0-078 
1 05 59 020 ±0-078 
0 10 38-923 ±0-082 
0 10 39-078 ±0 082 
0 05 06-931 ±0-103 
0 00 00-320 
0 00 00-025 
0 49 43750 ±0120 
0 49 43733 ±0120 
0 49 42*662 ±0*060 
0 00 00-877 ±0* 
1 51 18-940 ±0- 
1 51 19*973 ±0056 
0 00 60-134 
0 29 43*530 ±0*058 
2 33 05-440 ± 
1 01 13-090 ± 
0 53 06-220 ± 
0 53 05*850 ± 
0 52 55-720 ± 
0 00 00*710 ± 
1 34 23-365 ± 
1 34 23-560 ± 
1 34 24-070 ±0-040 
1 47 57*480 ±0-046 
0 00 01-510 
0 42 06 780 ±0*076 
1 05 50*840 ±0*091 
0 30 57-800 ±0-041 
0 25 33-840 ±0*050 
0 56 31-660 j ±0-044 
0 24 55*400 I ±0-091 
Computed 
Mean 
Error. 
Description of Interval for which the Difference of 
Longitude is given. 
Green wich-Mokattam (Cairo). 
Alexandria (Hunter’s Station) to Mokattam. 
Greenwich -Berlin (Transit Circle). 
Berlin- Malta. 
Malta- Alexandria. 
Berlin- Alexandria. Dr. Copeland’s Value. 
Berlin- Alexandria. Dr. Auwer’s Value. 
Alexandria (Hunter’s Station) to Suez (Low’s Station). 
Dr. Copeland’s Value. 
Alexandria (Hunter’s Station) to Suez (Low’s Sta- 
tion). Dr. Auwers’ Value. 
Mokattam-Suez (Hunter’s Station). 
Suez (Hunter’s Station, east of Low’s Station) to 
Dr. Gill’s Determination. 
:Suez (Hunter’s Station, east of Low’s Station) to 
Captain Campbell’s Traverse Measurement. 
Suez (Low's Station) to Aden (Gill’s Station). Dr. 
Copeland’s Value. 
Suez (Low’s Station) to Aden (Gill’s Station). Dr. 
Auwers’ Value. 
Suez (I Inn tor’s Station) to Aden (Heaviside’s Station). 
Aden (Gill’s Station, east of Heaviside’s Station.) 
Aden (Gill’s Station) to Bombay (Chamber’s Station, 
Cola ba Observatory ). 
Aden (Heaviside’s Station) to Bombay (Heaviside’s 
Station). 
Bombay to Captain Heaviside’s Station (east of the 
Colaba Observatory Transit Instrument or 
Chamber’s Station). 
Bombay (Heaviside’s Station) to Madras (Observatory 
Transit Circle). 
Berlin-lspahan. 
Ispahan-Kurrachee (Addison’s Station). 
Kurrachee-Madras (Addison and Pearson). General 
Addison’s Value. 
Kurracheo-Madras (Addison and Pogson). Mr. 
Pogson’s Value. 
Kurracheo (Captain Campbell's Station) to Madras 
Observatory. Determination by the officers of 
the G.T.S. 
Kurrachee {Campbell’s Longitude Station, west of 
Addison’s Station). 
Madras (Observatory) to Singapore (Flag Staff on 
Fort Canning, 1871). Prof. Oudeman’s Value, 
Madras (Observatory) to Singapore (Flag Staff on 
Fort Canning, 1871). Mr. Pogson’a Value. 
Madras (Observatory) to Singapore (Lieut. Norris’ 
Station). 
Singapore (Lieut. Norris and Capt. Darwin’s Station) 
to Port Darwin (Baracchi’s Station). 
(Lieut. Norris’ Station is the same as Capt. Darwin’s 
Station). (Darwin’s Station, east of Flag Staff on 
Fort Canning, 1871). 
Singapore (Darwin’s Station) to Banjoowangie (Capt. 
Helbs). 
Banjoewangie (Helbs’ Station) to Port Darwin 
(Baracchi’s Station). 
Port Darwin (Baracchi’s Station) to Adelaide Obser- 
vatory). 
Melbourne (Observatory) to Adelaide (Observatory). 
Port Darwin (Baracchi’s Station) to Melbourne Obser- 
vatory). 
Sydney (Observatory) to Melbourne (Observatory). 
