A treatise on magnetism, with a description and explanation of a meridional and azimuth compass, for ascertaining the quantity of variation, ... at any time of the day. ... /
Walker, Ralph.
London : Printed by R. Hindmarsh, sold by George Adams; Peter Elmsley; John Sewell; David Steel; John and Arthur Arch,
1794.
The final leaf comprises the directions to the binder.
ESTC