APPENDIX A. SECTION 10.
UPON THE GEOGRAPHICAL POSITIONS OF THE FIXED POINTS OF THE SURVEY.
The observations for determining the longitudes of the various parts of the coast were taken with a circle and a sextant by Troughton: besides these valuable instruments we had three chronometers of Arnold's make, namely, 413 (box) 2054 (pocket) and 394 (pocket); of which the two first were supplied by the Admiralty. At the end of the fourth year, in consequence of 394 having stopped, a fourth chronometer, made by Parkinson and Frodsham (Number 287 box) was purchased in the colony, and proved to be a most excellent watch.
The situations of the following places, which were either fixed by us or adapted from other authorities, served as the basis of the chronometrical determination of the longitudes of the intermediate parts.
The flagstaff of FORT MACQUARIE on the north-east head of Sydney Cove in PORT JACKSON (the Cattle Point of Flinders, and otherwise Bennelong Point) is in latitude 33 degrees 51 minutes 28 seconds South and longitude 151 degrees 15 minutes 26 East, being, according to the ensuing table, the mean of all the observations that have been taken.
