An essay on the variation of the compass, shewing how far it is influenced by a change in the direction of the ship's head : with an exposition of the dangers arising to navigators from not allowing for this change of variation, interspersed with practical observations and remarks /
Bain, William,Sir,-1853.
Edinburgh : Printed for William Blackwood, Prince's Street; and John Murray, bookseller of the Admiralty and Board of Longitude, Albemarle Street, London,
1817.
Includes bibliographical rerferences.
Errata recorded on the end page.
Compass
Scotland Edinburgh.