A treatise on magnetism
Subtitle: with a description and explanation of a meridional and azimuth compass, for ascertaining the quantity of variation, ... at any time of the day. ... By Ralph Walker, of Jamaica.
Series: Eighteenth century -- reel 3424, no. 03.
Publisher: printed by R. Hindmarsh, sold by George Adams; Peter Elmsley; John Sewell; David Steel; John and Arthur Arch
Published: 1794
Place of publication: London
Language: eng
Format: Microform
Number of pages: 226
Notes: The final leaf comprises the directions to the binder.

Microfilm. Woodbridge, CT Research Publications, Inc., 1986. 1 reel ; 35mm. (The Eighteenth Century ; reel 3424, no. 03).