An essay on weighing of gold, &c. wherein is shewn an effectual method for discovering and detecting of counterfeit pieces of money, on the principles of hydrostatics. ... To which is prefixed, a very extensive table, ... The second edition. By William Symons, ...
Symons, William.
London : printed for the author, and sold by J. Nourse,
1770.
With an errata slip.
ESTC