( iv ) 



to the working of Fire-Engines — of Filtering Water in large quantities — of 

 Kcouomising Fuel, Gas, &c. — of Preparing Superior Fuel from Peat — of Pre- 

 venting Smoke and Noxious Vapours from Manufactories — of Warming and 

 Ventilating Public Edifices, Private Dwellings, &c. — of Constructing Econo- 

 mical and Salubrious Dwellings for the Working Classes, especially in Towns 

 — of Making Cheap and Wholesome Bread from Maize, or Buckwheat, or 

 from Mixtures of these with other Substances. 

 2. Inventions or Improvements in the Manufacture of Iron and other Me- 

 tals, simple or alloyed — in the Manufacture of Writing and Printing Paper 

 — in Tuyeres for Blast Furnaces — in the Making and Tempering of Steel — 

 in Gilding Brass equal in Colour to the French — in Artificial Pavement — in 

 Balance, Pendulum, or Electro-Magnetic Time-Keepers — in Screw-cutting — 

 in Printing-Presses — in Stereotyping, and in cleaning the plaster from the 

 Types — in Furnaces and other Apparatus used in Stereotyping — in Type- 

 Founding — in the Composition of Printers' Rollers^ — in Ship-Building, with 

 regard to Ventilation, both for the Crew and the Timbers — in Currying and 

 Tawing of Leather — in Preparing Black Polished Leather equal to the French 

 — in Stationary and Locomotive Engines — in Railway Wheels and Axles — 

 in Railway Telegraphs and Signals — in Smith- Work and Carpentry — in 

 Tools, Implements, and Apparatus for the various trades — in Electric, Vol- 

 taic, and Sfagnetic Apparatus. 



2. Chemical Arts. 

 Improvements in Fine Glass for Optical Purposes, free from Veins, and of a 

 Dense and Transparent quality, equal or superior to the best Continental 

 Glass — also in hard Infusible Glass for Chemical Purposes — in the Annealing 

 of Glass — in the Manufacture of Writing Inks, both Common and Copying, 

 so as to flow freely from Metallic Pens — in the Dissolving of Caoutchouc, and 

 applying it to useful purposes. 



3. Relative to the Fine Arts. 

 Improvements in Patterns of Porcelain, Common Clay or Metal, of Domestic 

 Articles of simple and beautiful Forms, without much Ornament, and of one 

 Colour — in the Preparation of Lime and Plaster for Fresco Painting, and in 

 appropriate Tools for laying the Plaster with precision — in Calotype, Da- 

 guerreotype, and Electrotype — in the Production of Artificial Light as nearly 

 of the quality of Day-Light as possible — in Engraving on Stone — in the ap- 

 plication of Daguerreotype and Calotype to the Stone for Lithographic Print- 

 ing — in Die-sinking — in Wood-cutting and other methods of illustrating 

 Books to be printed with the Letter-Press — in Printing from Wood-cuts, &c. 

 — in Ornamentel Metallic Casting' — in Constructing Buildings on the most 

 correct Acoustic Principles. 



The SOCIETY also proposes to award the KEITH PRIZE, value Thirty 



Sovereigns, 

 For some important " Invention, Improvement, or Discovery, in the Useful 

 Arts, which shall be primarily submitted to the Society," betwixt and 1st 

 April 1847. 



By order of the Society, 



James Tod, Secretary. 

 Edinburgh, 13tA April 1846. 



