412 Proeeedings of the Boyal Scottish Society of Arts. 



4. Description, with a Drawing, of a Self-acting Stopper for Winding- 

 Engines. By Mr John Maxton, engineer, Greenock. Communicated by 

 Joiin Scott llussell, Esq., F.R.SS.A., Greenock.— Refened to a Commit- 

 tee. (835.) 



5. Dr Fyfe made a few additional observations on the subject of bis 

 Paper on the comparative expense of Light from Gas, Oil, Candles, &c. 

 (816.) 



6. Proposal for a System of Signals to prevent collision upon Railways. 

 By James Robertson, Esq., civil and mining engineer, Edinburgh. — Referred 

 to a Committee. (849.) 



7. On his application, permission was given to Mr H. Dempster to with- 

 draw for the present his Sailing Vessel on a new construction and rig. (845.) 



The following Donations were laid on the table : — 



1. Lectures on Agricultural Chemistry and Geology, No. V. (July 1841.) 

 By Jas. F. W. Johnston, M.A. University, Durham. Presented by the 

 Author.— Thanks voted. (824.) 



2. The Civil Engineer and Architect's Journal, Nos. 50 and 5L Present- 

 ed by Mr Knowles.-r—T hanks voted. (843.) 



PRIVATE BUSINESS. 



I. The following Candidates were elected Ordinary Fellows^ 

 viz.: — 



1. John Gillespie, Esq., 44 Castle Street. 



2. Mr Alexander Kay, plumber, 144 Prince's Street. 



\^th February 1842. — Sir John Robison, K.H., President, 



in the Chair. The following Communications were made : — 



L Part Second of Mr George Glover's communication on Drowning. 

 (856.) Thanks voted. — Part Third, on the best means of Resuscitation, to 

 be given at next meeting. 



2. Description of .a simple and accurate Instrument, adapted to the for- 

 mation of fine hinges. By Mr John Shearer, 84 George Street, Edinburgh. 

 The tool was exhibited, and its application shewn. Thanks voted. (855.) 



3. A Safety-Cape, &c., for skaters and others frequenting the ice, or tra- 

 velling by water, were exhibited and described by James Simpson, Esq. 

 advocate. Thanks voted. (865.) 



4. Specimens of Sheet Caoutchouc, prepared in London by an improved 

 process, were exhibited by Mr James Dowie, boot-maker, London and Edin- 

 burgh, F.R.S.S.A. Thanks voted. (854.) 



5. The Oxyhydrogen Blow pipe and other forms of Blow-pipes suited to 

 the purposes of jewellers, goldsmiths, cutlers, and other artists, and for 

 being used with coal-gas along with atmospheric air, were exhibited by Sir 

 John Robison, K.H., President R.S S.A., Mr George Glover, and Mr William 

 Kirkwood, plumber. Thistle Lane, Edinburgh. The Blow- pipes of Sir John 

 Robibon and Mr Kirkwood, fitted for being used with coal-gas and common 

 air, were considered to be well adapted, not only for soldering, but for tho 



