clxii 
INTRODUCTION. 
[Prior Discoveries, 
Flinders and finally quitted with still more on Dec. 3, was named Port Dal- 
ai \ d 7 98. SS " Rvmple, by His Excellency governor Hunter, as a mark of respect 
to Alexander Dalrymple, Esq., the late hydrographer to the Admi- 
ralty. The following is a summary of the observations taken there, 
for fixing the position of Low Head, on the east side of the en- 
trance : 
Latitude from six meridian altitudes, of which three 
were taken in port, and three at sea within sight „ t lf 
of Low Head - - - - 41 3 30 S. 
Longitude from two sets of distances of the sun east, 
and two west of the moon, with Troughton's nine 
inch sextant No. 251, corrected for the errors of 
the lunar and solar tables - - 14,6 43 45 E. 
From two d°. d°. with a five-inch sextant of Adams 146 52 46 
Mean from sun and moon 146 48 15 E. 
From one set of a star east, and one west of the moon, 
with No. 251 - - - 146 52 34 
From two ditto, ditto, with the five-inch - 146 56 50 
Mean from stars and moon 146 54 42 
Mean of all 146 51 28 E * 
Variation of the theodolite, observed on the shore 
of Outer Cove - - - - 7 28 east 
D°. of the azimuth compass, observed in the same 
place, - - - 8 30 
D°. of the same, taken at anchor off the port, the 
sloop's head being N. by E. ( magnetic ) , - 7 44 
The time of high water in Port Dalrymple, is one quarter of an 
* The longitude of Low- Head, deduced from the Investigator's time keepers, combined 
with my surveys in the Francis and Norfolk, is 146° 47 i' east ; as the observations with 
the large sextant, No. 251, taken alone, would give it very nearly. 
