98 COMPILED CATALOGUE OF LATITUDE sTaRs. EPocH 1880. 
catalogue of 1860, together with the stars which had been observed 3 
- at Sydney during the last three years in connection with the a 
trigonometrical survey, and to make a complete —_— of the : : 
stars which would be ihr’ in New Wale 
From these sources I have obtained 517, of scgnsal not less 
than the seventh, which culminate within 30° of the zenith of 
ae place lying between 29° and 37°98, ., 2.¢. with N.P.D. 
9° and 157°. 
The method pursued in the formation of the catalogue was as 
follows :—I first selected 266 stars which are common to the 
when brought up to 1880, agreed within 3”; but 1 poles 
raised the standard to 2”, and thus found that it was necessary to 
reject 26. In the same manner, 38 stars were retained —- 43 
which were found in the Melbourne and W ashington catal 
The epoch of the latter being the same as «te ay the "Cape 
catalogue, no preliminary calculation was necessary ; 
no record of the number of stars rejected by inspection, ‘but added 
182 to my list : 
Finally, hots the 139 stars specially observed for the poi 4 
General by Mr. Russell, it was increased by 42, which 
position with one other ‘of the 2 thc and by 15 not found i in 
_ accordance with the principle on which it is form oe 
- to exclude the others, although the deduced latitudes prove’ z 
the a must generally be very correct ; W: there 8 
certainty with respect to individual stars ; since, in the ce 
zenith pairs, an error in the declination of one star ‘ae 4 
= aperi or partially balanced by a corresponding error in 
As this catalogue is intended solely for latitude observations 
where extreme accuracy in the time is not required, I hse pr 
| recy 1880 from Teyana of the others used  yeaan® 
Rekaed and, fori time 0 the Nau 
the corrections for the epoch 1880, the first terms of the et! ual 
in R.A. P.D. have been calculated in every é 
Melbourne and Cape catalogues. When either of these 138 
used with the Sydney observations, or with the Washing | 
