r 199 ) 



List of Prizes of the Uoyal Scottish Society of Arts for 

 Session 1842-43. 



The Royal Scottish Society of Arts proposes to award 

 Honorary Medals, and Pecuniary Prizes, for approved Com- 

 munications. 



No Prize to exceed Thirty Sovereigns. 



The attention of the Fellows and of the Public is directed to In- 

 ventions, Discoveries, and Improvements in the Mechanical and 

 Chemical Arts in general, and also to means by which the Natural 

 Productions of the Country may be made more available ; and in 

 particular to, — 



Experiments applicable to the Useful Arts. 



Inventions, Processes, or Practices from Foreign Countries. 



Practical Details of Public or other undertakings of National 

 importance, — not previously published. 



Methods of Economising Fuel, Gas, &c.— of preventing Noxious 

 Vapours from Manufactories, — of procuring small, intense, and 

 uniform sources of Heat. 



Improvements in Instruments for Measuring minute quantities 

 of Heat, — in the Manufacture of Iron, and other Metals, in 

 the making and Tempering of Steel, — in Calotype, Daguerreo- 

 type, and Electrotype, — in the preparation of Lime and Plas- 

 ter for Fresco Painting, and for appropriate Tools for laying 

 the Plaster with precision, — in Electric, — Voltaic, — and Mag- 

 netic apparatus, — in Pavements, — in Balance or Pendulum 

 Time-keepers, — in Taps and Dies, — in Glass and Porcelain, — 

 in Land, Marine, and Locomotive Steam-Engines, and Rail- 

 way Carriages, — in Railway Telegraphs and Signals, &c., &c. 



KEITH PRIZE. 



The Society will also award the Keith Medal, value Thirty 

 Sovereigns, for any important Invention, Discovery, or Im- 

 provement in the Useful Arts. 



General Observations. — ^The Keith Medal may be awarded for 

 any communication which shall comply with the terms of the an- 

 nouncement of that Prize, although falling under any of the abovA 

 specified subjects. 



