A system of naval mathematics: or, practical rules of the art of navigation. Intended for the Use of Schools, and Young Mariners. By J. Bettesworth, Master of the Naval Academy, Chelsea.

London : printed by J. Moore, No. 43, Drury-Lane, for the author; and sold by Mr. Le Keux, optician, No. 103, near Execution-Dock, Wapping; and the following booksellers, viz. Mr. Wenman, Fleet-Street; Mr. Chappell, Royal - Exchange; Mr. Mottley, Portsmouth; Mr. Gillman, Chatham; and Messrs. Heyden and Son, Plymouth, M,DCC,LXXXVII. [1787]

[2],vi,251,[1]p. : ill.,map ; 120.

ESTC T113539

Electronic reproduction. Farmington Hills, Mich. : Thomson Gale, 2003. (Eighteenth century collections online). Available via the World Wide Web. Access limited by licensing agreements.