The magnetic atlas, or variation charts of the whole terraqueous globe; Comprising a System of the variation and Dip of the Needle, by which, the observations being truly made, the Longitude may be ascertained. By John Churchman. By John Churchman.

London : printed for the author, by Darton and Harvey; and sold by John Sewell, Cornhill; Charles Dilly, Poultry; T. and J. Egerton, opposite the Admiralty; James Phillips, George Yard, Lombard-Street; and Steel and son, Tower-Hill. MDCCXCIV. (entered at Stationers-Hall.), [1794]

vii,[1],80p.,plates : maps ; 40.

ESTC T38839

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