Observations made by John Crosley on his voyage to New Holland (Australia) on board HMS 'Investigator' to carry out surveying.
1. Comparison of Thomas Earnshaw and John Arnold's time-keepers, 17 June 1801.
2. Rates of time-keepers at Portsmouth, 1801.
3. Astronomical observations made at sea between Portsmouth and Madeira, 19 July - 1 August 1801.
4. Observations on board the ship at Madeira, 3-6 August 1801.
5. Rates of the time-keepers, with their errors, from the mean time of Funchall Bay, Madeira.
6. Longitude and latitude of Funchall Bay, 1801.
7. Observations made on board ship at sea, 9-15 October 1801.
8. Astronomical observations made on a shore near the Block House, Simons Bay, False Bay, Cape of Good Hope, October 1801.
9. Equal altitudes of the Sun.
10. Accounts of the daily rates of the time-keepers, 21 October - 1 November 1801.
11. Account of the errors of the time-keepers from mean time, Simons Bay, False Bay, Cape of Good Hope.
12. Observations made on shore near the Block House, Simons Bay, for finding the longitude.
13. Eclipse of the Moon, 11 September 1802.
14. Longitude of Simons Bay, Cape of Good Hope, 1801-1802.
15. Latitude and longitude of the Island of Trinadada, 23 September 1801.
16. Rate of pocket time-keeper No. 465 at the Cape of Good Hope, 1801-1803.