The result of our repeated observations on land, are as follows:—
| Latitude of Botafogo | 21° 56' 5" South. |
| Medium Longitude from various observations | 43° 7' 32" West. |
Every longitude which is given in the course of this voyage is reckoned by the distance from Greenwich, going from West to East. The variation of the needle amounted to 3° East, its inclination to 9° 28'. As the longitude of Cape Frio has been variously laid down, I took much pains to ascertain it exactly. By a very good chronometer, I found the difference between Cape Frio and Botafogo 1° 6' 20"; so that the true longitude of Cape Frio from Greenwich must be 42° 1' 12".
DOUBLING OF CAPE HORN,
AND
RESIDENCE IN CHILI.