Proceedings of the Society of Arts, 395 



cations to the Society during Session 1838-9, the special thanks 

 of the Society were given to the following gentlemen for their re- 

 spective communications, although not lodged in competition for 

 Prizes : — 



1. To Sir John Robison, K.H., Sec. R.S.E., for his communi- 



cations •' on the best method of burning gas for supplying 

 heat ;" — read 13th March 1839 ; and '* on the best method of 

 burning gas for the purpose of illumination ;" — read 27th 

 March 1839. (581 and 582.) 



2. To John Scott Russell, A.M., F.R.S.E., V.P.S.A., Virginia 



House, Greenock, for his paper ** On the Vibration of Sus- 

 pension Bridges, &c.," and suggestions for " preventing in- 

 jury from this cause;" — read 16th January 1839. Printed 

 in the Society's Transactions. (590.) 



Note. — From the great importance of this subject, the Com- 

 mittee humbly but strongly recommended to the Society 

 to request Mr Russell to give them notice whenever an 

 opportunity may occur of observing the effect, on the 

 great scale, of a construction on the principles here laid 

 down by him ; and that, after such observation shall 

 have been made, the subject should be again taken up 

 by the Society. 



3. To John Scott Russell, A.M., F.R.S.E., V.P.S.A., Green- 

 ock, for his Description and Drawings of a " Perfect Parallel 

 Motion for the Land and Marine Steam-Engine ;" — read 13th 

 March, and Model exhibited 3d July 1839. (626 and 655.) 



Note, — The Committee recommended that a sum, not ex- 

 ceeding Ten Sovereigns, be laid out for a Model of an 

 Engine on this principle, to be furnished by Mr Russell 

 for the Society's Museum. 



4. To John Alston, Esq. of Rosemount, Hon. M.S.A., Hon. 



Treasurer to the Asylum for the Blind, Glasgow, for his 

 ** Specimens of Printing in Relief for the Blind, with Archi- 

 tectural Embellishments;" — read and exhibited l7th April 

 1839. (639.) 



5. To MuNGo Ponton, Esq., W.S., F.R.S.E., Foreign Sec. &A., 

 for his " Notice of a cheap and simple method of preparing 

 Paper for Photographic Drawing, iu which the use of any 



