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• An essay on gold coin : In which is shewn the general use of currency, and the present state of our gold coin; with Arguments to prove the Necessity of a New Coinage; pointing out the distinct Value and Weight that each Piece of Gold ought to be of. Also the principles of hydrostatics, Shewing how to discover any Adulteration in Gold Coin, either by the Pen, or Tables ready calculated to shew the Par of Weight of each Piece, either in Air or Water. With a description and use of the most improved weighing instruments; shewing their Properties when really accurate. Intended For the Service of Bankers, Public Offices, and Trade in General. To this Edition is subjoined the Substance of the late Gold Act; with Answers to the very severe Strictures upon it, &c. in a Tract intitled A Critical Enquiry, &c. By Thomas Hatton, Author of a Treatise upon Clock and Watch Work
  by: Hatton, Thomas
  Published: (1774)
• An essay on weighing of gold : &c. wherein is shewn an effectual method for discovering and detecting of counterfeit pieces of money, (be they ever so artfully disguised) Which will be of great Use to prevent Persons being imposed upon by any of those ... and adulterated Pieces of Gold Coin, which are too common at this Time. This is performed by a Pair of common Scales and a Set of Gold Weights, with the Hydrostatical Instrument herein described, which may be had at a very small Expence. By this Method not only Gold Coins, &c. but also all ... of Gold and Silver Plate may be weigh'd, and their ... Value ascertained to the greatest Nicety. By William Symons, Author of The Practical Gauger
  by: Symons, William
  Published: (1756)
• Geschichte des Goldes
  by: Ungern-Sternberg, W. H. C. R. A. von
  Published: (1835)
• Exportation of gold : Mr. T. Attwood's speech, in the House of Commons, on May 30, 1839
  by: Attwood, Thomas
  Published: (1839)
• An essay on gold coin : In which certain methods are laid down to ascertain the quantity and quality of any current piece of gold coin, and by which every species of counterfeit or adulterated coin may be immediately detected. With a description of several new invented instruments of various constructions, to weigh gold either in air with respect to weight, or in water with respect to quality or purry; and which are calculated to answer every purpose required, with respect to accuracy, portability, simplicity, perspicuity, and cheapness; and by which any person may be enabled to judge of the inefficacy of the common scales, and instruments generally used; and informed how to know when an instrument performs well, and is really accurate. Likewise in the course of the work are observations on currency in general, and the present state of our gold coin in particular; with arguments to prove the necessity of a new coinage. By Thomas Hatton, author of a treatise upon clock and watch work
  by: Hatton, Thomas
  Published: (1773)