( 199 ) 



Report of the Committee appointed hy the Society of Arts for 

 Scotland, to award Prizes for Communications read and ex^ 

 hibited during Session 1837-38. 



Your Committee having met, and carefully considered the 

 various Communications laid before the Society during Session 

 1837-8, beg leave to Report that they have awarded the fol- 

 io ^\ing Prizes : — 



1. To Mr Edward Sang, F.R.S.E., — Civil Engineer and Machine 



Maker, Edinburgh, for a Notice of a Dioptric Light erected at 

 Kirkaldy ; with a Description and Drawings of the Apparatus 

 used by him for cutting the Annular Lens to the true optical 

 figure ; — read, and the apparatus exhibited, 25th April 1 838 : — 

 printed in the Society's Transactions, 1838."* (552.) 



The Keith Medal, value Twenty Sovereigns. 



2. To Mr James Whitelaw, 1 8 Russell Street, Glasgow, for a 



Description, with Drawings, of a Grinding Machine, which is 

 used instead of a Turning-lathe for giving a truly cylindrical 

 form to the rims of Pulleys and Drums ; and more particularly 

 for a Drawing and Description of a Machine invented by him 

 for grinding Pulleys round on the rim; — ^read and exhibited 14th 

 February 1838; — and printed in the Society's Transactions, 

 1838.t (512.) 



The Societi/s Silver Medal, value Ten Sovereigns. 



3. To John Alston, Esq. Hon. M. S. A. Honorary Treasurer to 



the Glasgow Asylum for the Blind, for Specimens of a series 

 of Fables, with Woodcut Illustrations, then in progress of being 

 printed by him for the use of the Blind at Glasgow ; exhibited 

 30th May 1838, (568.):— Also for his Musical Catechism, with 

 Tunes for the use of the Bhnd, printed in raised Characters at 

 the Glasgow Blind Asylum ;— exhibited l6th May 1838, (559.); 

 — and, generally, for his zealous, energetic, and benevolent exer- 

 tions for the education of the Blind. 



The Society's Silver Medal, or a piece of Plate, value Ten, 

 Sovereigns. 



4. To Mr George Wilson, 77 Broughton Street, Edinburgh, for his 



Model sent in competition for the Prize offered for " a conve- 

 nient and simple method of increasing or diminishing the dis- 

 tance of the Floats from the centre of the common Paddle- 

 wheels, during the motion of the Vessel, so as to adapt them to 



* Vide also Edin. New Phil. Journal, vol. xxv. p. 249. t Ibid. p. 336# 



