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SOCIETY OF ARTS FOR SCOTLAND.

The Society for promoting the Useful Arts in Scotland pro­pose the following subjects for premiums, and will confer Ho­norary Medals on the successful competitors. The competition is open to the natives of all countries, excepting when other­wise specified.

IN THE MECHANICAL DEPARTMENT.

1. For the most important discovery in Mechanics, during the season 1823 1824 The Keith Gold Medal.

2. For the best set of experiments on any branch of Practical Mechanics The Keith Silver Medal.

3. For the best set of experiments on the ap paratus called Barkers Mill, the tube of the Model not to be less than 4 feet high, and 4 inches dia­meter. The account to specify the quantity of water expended in each expe­riment ; the time, the weight, and the height to which it is raised; the size and form of the apertures by which the water escapes; and generally, all cir­cumstances affecting the results An Honorary Medal.

4. For the most important communication of useful inventions or practices from Foreign Countries, not yet known or adopted in Britain An Honorary Medal.

5. For the most important Mechanical Invention, applicable to Agriculture or Manufactures An Honorary Medal.

6. For the best paper on the Selecting, Working, and Hardening of Steel, for edge and other tools, dies, springs, &c.An Honorary Medal.

7. For the best process for making Screwing Tools, and Screwed Work, su­perior in point of economy or accuracy to the modes commonly in use An Honorary Medal.

8. For the most economical mode of forming Diagrams, Plans, &c. to illus­trate books of science. The Diagrams may be printed along with the text* or separately An Honorary Medal.

9. For any important improvement in the construction of Balance, or of Pendulum Timekeepers, Artists residing in ScotlandAn Honorary Medal.

10. For the best mode of correcting the secondary colours in refracting Te­lescopes An Honorary Medal.

11. For the best Plan of a Cart for carrying Casks, Packages, &c. on paved Streets and Quays An Honorary Medal.

12. For the best plan for adapting Water Wheels to the changes in the le­vel of the streams, or tides, by which they are affectedAn Honorary Medal.

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IN THE CHEMICAL DEPARTMENT.

13. For the most important discovery in the Chemical Arts, during the sea­son 1823-4 An Honorary Medal.

14. For the best set of experiments on the Treatment of Foreign Wines, with a view to produce early maturity and improved quality An Honorary Medal.

15. For the best set of experiments on the subject of Preserving Meat by Salt, &c. The account to specify the chemieal changes and combinations

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