f 4 20, the longitude.

Then for the Latitude.

To the log. co-sine angle A (arith. comp.) . 1.95650 Add the log. co-sine angle B 9.61101 And log. sine of the dec 8.00779

It gives the log. sine of the latitude 22° 6' = 9.57530

As angle B is less than 90°, the latitude is of the same name as the declination; which being north, the latitude is north also.

Hence the comet will be, at mean noon, Greenwich time, on the 18th of October, 1835, :n t 4° 20', with 22° 6' north latitude.

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