cumference just above the knee joint 1 1 0
of the knee joint 1 1 0
of the leg, immediately below the knee joint 0 11 0
of the leg 1 0 0
of the leg small 0 7 6
of the foot 0 10 6
Our operations at the observatory were not favoured by the weather; but a
sufficient number of observations was obtained for all the purposes of
navigation:
The _Latitude_ of the tents in Princess-Royal Harbour, from three
meridian zenith distances of the sun, observed with Ramsden's universal
theodolite, was
35 deg. 2' 5" south.
_Longitude_ from thirty-one sets of distances of the sun east and west of
the moon, of which the particulars are given in Table I. of the Appendix
to this volume,
117 deg. 53' 10" east.
These being reduced by the survey to BALD HEAD,
at the entrance of the sound, will place it in
Latitude 35 deg. 6' 15" south.
Longitude 118 deg. 0' 45" east.*
The mean rates of the time keepers, deduced from equal altitudes taken on
and between Dec. 15 and Jan. 1, and their errors from mean time at
Greenwich, at noon there on the last day of observation, were as under:
h ' " "
Earnshaw's No. 543, slow 0 21 46,69 and losing 6,46 per day.
No. 520, 0 51 2,81 16,72
Arnold's No. 176, 1 0 45,46 9,26
No. 82 went too irregularly to be worth taking.
The longitude of the tents given by the time keepers on the first day of
observation, with the Cape rates, was as follows:
Earnshaw's No. 543, 118 deg. 14' 49" east.
520, 117 59 22
Arnold's 176, 118 1 14
The two first, which generally throughout the voyage showed themselves to
be the best time keepers, were on a mean 13' 56" to the east of the lunar
observations; but by using rates accelerating in arithmetic progression
from those of the Cape of Good Hope to the new ones of King George's
Sound, the mean of Earnshaw's two time keepers will then differ only 8'
19" to the east in forty-four days. In fixing the position
|