390 Prizes offered by the Eoyal Scottish Society of Arts. 



Salubrious Dwellings for the Working Classes, especially in 

 Towns, — of Filtering Water in large quantities, — of rendering 

 large supplies of Water available for the purpose of extinguishing 

 Fires ; and the best application of Manual or other Power to 

 the working of Fire-Engines, — of Constructing Buildings on the 

 most correct Acoustic principles, — of applying Glass to new and 

 useful pui'poses. 

 2. Inventions or Improvements in the Manufacture of Iron, and 

 other Metals, 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, — in Artifi- 

 cial Pavement, — in Balance or Pendulum Time-Keepers; or in 

 Electro-Magnetic Time-Keepers, — in Screw-cutting, — in Print- 

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

 the Types, — in Type-Founding, — in the Composition of Printers' 

 Boilers, — in Shipbuilding, with regard to Ventilation, both for 

 the Crew and the Timbers, — in Currying and Tawing of Leather, 

 — in Stationary and Locomotive Engines, — in Railway Wheels 

 and Axles, — in Brakes for Stopping the Trains, — in Railway 

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

 Tools, Implements, and Apparatus for the various trades, — in 

 Electric, Voltaic, and Magnetic Apparatus. 



1. Chemical Arts. 



Improvements in Fine Glass for Optical Purposes, free from Veins, 

 and of a Dense and Transparent quality, — also in rendering Glass 

 hard and difficult of fusion for Chemical Purposes, — in the An- 

 nealing of Glass, — in the Manufacture of Writing Inks, both com- 

 mon and Copying, so as to flow freely from Metallic Pens, — in 

 the application of Caoutchouc and Gutta Percha to new and 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 Engraving on Stone, — 

 in Daguerreotype, Talbotype, or other Photographic processes, — 

 in applying such processes to stone, for Lithographic Printing, — 

 in Electrotype processes, — in the production of White or Neutral 

 Artificial Light by means adapted to ordinary use, — 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 Ornamental Metallic Casting. 



II. Experiments applicable to the Useful Arts. 



