York Fort is 10° 45' west longitude from the north end of Mansfeild; also 11° 15' west longitude to the west main, in latitude 58° 00' N.

It flowed in Ham Sound 9 hrs. 45' on the full and change of the moon ; but the tide run untill 10 hrs. 30'.

It flowes on the coast from Tod Head to Buckannes nearly 0 hrs. 45', or S. by W. full and change, and runs half-tide.

Buchanness is in latitude 57° 25' N. ; variation, 14° 80' north-westerly.

The course from Battery Head to South Roualsa is N.N.W. twenty-five leagues ; and this is confirmed by sundry experiments.

Cape Henrietta Maria is in longitude 84° 00' W. from London, or 5° W. from Cape Diggs.

East Barrow Island is twelve mile to northward of Hoy Head, and seventy-eight ditto to westward of ditto.

Hoy Head is in latitude 58° 55' N., and longitude 3° 80' W. from London.

Stack I'le bears from Hoy Head W. ½ N. eleven leagues. East Barrow to Hoy Head, E.S.E., twenty-six leagues. Cape of Resolution to Nix Compestriss, cours N.W.by W. sixty-six miles, in latitude 62° 04' N.

Observed in latitude 62° 20' N., when Upper Savage I'le bore N. ½ E. five leagues ; variation, 88° 80' north-westerly. From Cape Diggs to the north, and nearest part of Mansfeild, bears E. and W. fifty miles.