1820.  October :  Careening Bay, North-west Coast :  15 6 1/4 :  125 0 :  38 44 36 :  South :  0 43 1/2 West :  Taken at the tent.

Dip of the Needle at Port Louis, Simon’s Bay, and various parts of the Atlantic Ocean, observed upon the Bathurst’s return to England.

1821.  November :  Port Louis, Mauritius :  20 10 :  57 29 East :  51 42 :  South :  12 00 West :  On shore.

1823.  February :  Simon’s Bay, Cape of Good Hope :  34 11 2/3 :  18 28 1/2 :  48 23 1/2 :  — :  28 to 30 :  On shore.

February 9 :  False Bay 5 minutes East-South-East of Simon’s Bay :  — :  — :  48 48 :  — :  28 to 30 :  On the binnacle.

February 14 :  At Sea :  27 18 :  8 50 :  37 57 1/2 :  — :  24 00 :  On the binnacle.

February 16 :  At Sea :  23 47 :  4 2 :  30 10 :  — :  24 00 :  This observation is correct to 3/4 degree.

The situation for the above observation bears East 5 degrees North from the place where the same dip was observed by M. Perouse on the Coast of Brazil.

February 20 :  At Sea :  17 7 :  4 57 West :  15 42 1/2 :  — :  21 9 :  Correct to 1/2 degree.

The above situation bears East 16 1/2 degrees North from the place where Commodore Baudin observed the dip of 15 degrees; and East 14 degrees North from the observation of 14 degrees by M. Perouse.

February 24 :  At Sea, four leagues North-North-West from St. Helena :  — :  - :  11 45 :  — :  20 35 :  Correct to 1/2 degree.

February 26 :  At Sea :  14 25 :  7 53 :  7 56 1/4 :  — :  18 54 :  Correct to 1/2 degree.

1823.  February 27 :  At Sea :  12 42 South :  9 21 West :  3 6 3/4 :  South :  18 28 West :  -.

Upon placing the instrument with the end marked 180 degrees in the direction of North 45 degrees East the needle dipped 4 30.

Upon placing the instrument with the end marked 180 degrees in the direction of North 67 East the needle dipped 11 30.

Upon placing the instrument with the end marked 180 degrees in the direction of North 78 East the needle dipped 14 30.

Upon placing the instrument with the end marked 180 degrees in the direction of North 85 East the needle dipped 18 15.

Upon placing the instrument with the end marked 180 degrees in the direction of North 88 East the needle dipped 20 0.

Upon placing the instrument with the end marked 180 degrees in the direction of North 91 East the needle dipped 25 0.

Upon placing the instrument with the end marked 180 degrees in the direction of North 92 1/2 East it was vertical.

Upon placing the instrument with the end marked 180 degrees in the direction of North 95 East the needle shifted on the opposite side to 65 0.

Upon placing the instrument with the end marked 180 degrees in the direction of South 45 East the needle shifted on the opposite side to 3 40.

Upon placing the instrument with the end marked 180 degrees in the direction of South 45 West the needle shifted on the opposite side to 3 0.