CO129-129 - Sir MacDonnell - 1868 [1-3] — Page 475

2

3.-186

EXAMINATION FOR ONLY MATES.

(Continued.)

EXAMINATION FOR ONLY MATES.

(Continued.)

At

Appt. T. Ship

4.-186

3

in latitude

longitude

The observed altitude of

at Ship in latitude

was

The Sun's Magnetic Amplitude was

height of eye

fect. Time by a chronometer

Required True Amplitude and Variation.

which was

and

for mean noon at Greenwich

daily

Required the Longitude by Chronometer.

3475