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fire places, this animal seemed to form the principal subsistence of the natives; but we had not the address to obtain any. Hump-backed whales frequent the entrance of the sound, and would present an object of interest to a colony. In fishing, we had little success with hook and line; and the nature of the shores did not admit of hauling the seine. The climate here, being one degree within the tropic, was warm at this season, which may be considered as the spring and the driest time of the year. On board the ship, the height of the thermometer did not exceed 76 deg., with the warm winds from the northward, but at the tents it averaged at noon somewhat above 90 deg.; and the musketoes and sand flies were very troublesome at all places near the mangroves. We did not see any snakes or other venemous reptiles or insects. The _latitude_ of Upper Head, from six meridian observations in the artificial horizon, is 22 deg. 23' 24" S. _Longitude_ from fifty sets of distances of the sun and moon, given in Table II of the second Appendix to this Volume, 149 deg. 46' 53" E. The errors of the time keepers from mean Greenwich time, at noon there Sept. 26, and their mean rates of going during seven days, of which four were before and three after they had been let down the second time, were as under: Earnshaw's No. 543 slow 2h 3' 37.23" and losing 9.62" per day. Earnshaw's No. 520 slow 3h 29' 15.57" and losing 21.41" per day. These errors and rates were found by lieutenant Flinders, from equal altitudes taken with a sextant on a stand, and using an artificial horizon of quicksilver. The longitudes given by the time keepers on Sept. 12 a.m. at Upper Head, with the Port-Jackson rates, were these: No. 543, 149 deg. 54' 27" east. No. 520, 149 deg. 53' 47.5" east. The mean is 7' 14" to the east of the lunars; but on using rates equally accelerated from those at Port Jackson to the above at Upper Head, and commencing the acceleration on Aug. 15, at Keppel Bay, where the time keepers were found to be keeping their former rates, the mean longitude will be 149 deg. 48' 56.6", or 2' 3.6" from the lunar observations; which is therefore the presumable sum of their irregularities after August 15, or in 27.7 days. In fixing the positions of places along the East Coast, I have made use of the time keepers from Port Jackson to Port Curtis, without any correction. From Port Curtis to Broad Sound, the coast and islands are
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