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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 of places from Cape Leeuwin to the Sound, these accelerating rates have been used; and the longitude has been further corrected by allowing an equal proportion of the error, 8′ 19″, according to the number of days after Nov. 1, when the last observations were made at the Cape of Good Hope. In the Appendix, the nature of these corrections is more particularly explained.

The height of the thermometer at the tents, as observed at noon, varied between 80° and 64°. On board the ship, it never exceeded 70½°, nor was below 60°. The range of the barometer was from 29,42 inches in a gale of wind from the westward, to 30,28 inches in a moderate breeze from south-west. The increase being probably occasioned by the iron ballast in the bread room underneath.