RULES FOR FINDING TIIE LATITUDE AND LONGITUDE, AND

THE VARIATION OF THE COMPASS.

Author of a work on “Plane and Spherical Trigonometry;" "IIand-book of the Stars;"

“Problems in Astronomy, Navigation, &c., with Solutions:" formerly Mathematical

Master in the Royal Military Academy, Woolwich; and an Examiner of Officers in

the Merchant Service in Nautical Astronomy, &c.

LONDON:

JOHN WEALE, 59, HIGH HOLBORN.

1853.