208 Proceedings of the Society of Arts. 



2. On the Erroneous Geographical Position of many Points on 

 the Frith of Clyde. By William Galbraith, Esq. teacher of Ma- 

 thematics, Edinburgh, M.S. A. 



In this paper Mr Galbraith shewed, from actual observation, that 

 several points in the entrance to the Frith of Clyde, such as Pladda 

 Light and the south end of Arran, are erroneously laid down even 

 on the best maps, to the extent of an error of five miles in latitude ; 

 the longitude being also very erroneous. He concluded by suggest- 

 ing the propriety of memoralizing Government to allot a tenth part 

 of the men employed on the Trigonometrical Survey of Ireland, to 

 complete the Survey of Scotland. 



3. Two Models of Snow-Ploughs, invented by Mr Thomas 

 White, wright, Straton, were exhibited. 



4. Drawing and Description of a Tenoring and Sash-making 

 Machine. By Mr John Kirkwood junior, wright, Glasgow. 



5. W. Austin and Company's Family-Mangle, which obtained 

 the Silver Medal in 1834, was exhibited in an improved form. 



This mangle has been simplified, and iron frames have been sub- 

 stituted for wooden ones. Mr Wilshere of 9 Waterloo Place, the 

 maker, exhibited this mangle. 



6. The Committee on M. Dembour's (of Metz) Metallic Ectypo- 

 graphy, or Method of Engraving in Relief, reported. Mr Gellatly, 

 convener. 



7. The Report of Committee on Mr R. Adie's New Anemome- 

 ter, was read. 



8. The List of Prizes offered by the Society for the current Ses- 

 sion, 1836-37, were distributed. 



9. The following Report of the Prize Committee awarding the 

 Prizes for Session 1835-36, was read, and the Prizes were deliver- 

 ed to the successful Candidates, by the Vice-President, with appro- 

 priate addresses-' 



1. To Edward Sang, Esq. teacher of Mathematics, and lecturer 

 on Natural Philosophy, Vice-Pres. Soc. of Arts, for his Improve- 

 ment in the Construction of Wollaston's Goniometer ; read and ex- 

 hibited 13th April 1836 The Society's Honorary Silver Medal. 



2. To Mr John Sang, land-surveyor, Kirkaldy, M. S. A., for 

 his Systematic Method of Measuring Surface and Solidity ; read 

 13th April 1836. The Society's Honorary Silver Medal. 



3. To Mr James Gall junior, printer, Edinburgh, for his spe- 

 cimens of Embossed Maps for the Blind ; exhibited 9th March 

 1836. The Society's Honorary Silver Medal. 



4. To Messrs John Macpherson (of Smith's Heirs), Blair Street, 



