406 Proceedings of the Society of Arts. 



6. Dr D. B. Reid reported progress as to the proceedings of the Com- 

 mittee for promoting an Exhibition of interesting natural and artificial 

 objects, models of machinery, &c. ; and it was suggested that he, as 

 Convener, should apply to the Highland Society, and to Professor Low, 

 for their countenance and support to the object in view, by allowing some 

 of their models of machinery and implements to form part of the collec- 

 tion on that occasion, which is expected to be a large and interesting 

 one. 



The following Candidates were admitted as Ordinary Mem- 

 bers, viz. — 



James Mackenzie, Esq. W. S. 10 Ainslle Place ; John Burn Murdoch, 

 Esq. of Gartincaber, advocate ; Mr Thomas Jameson, 47 London Street ; 

 Mr John White, teacher, 3 North St David Street ; Mr George Wauchope, 

 merchant, 21 South Bridge Street ; Henry Graham, Esq. surgeon, 11 

 Shandwick Place. 



Vlth Bee. — Sir John Graham Dalyell, Kt. President, in the 

 Chair. The following Communications were laid before the 

 Society : — 



1. Notice of an improved method of combustion, successfully prac- 

 tised in England, whereby a considerable saving is effected, and the 

 smoke entirely consumed. By John Scott Russell, M. A., F. R. S. E., 

 V, P. Soc. Arts. (600.) — Thanks voted. This notice excited great inte- 

 rest; — Mr Russell stated that he had seen this method in operation, 

 and from inspection of the books for a course of years, he had satisfied 

 himself that the actual saving of fuel was to the extent of 18 per cent, 

 besides burning the smoke. 



2. Notice of an indelible ink, invented by P. D. Veitch, M. D., No. 8 

 Hart Street, Edinburgh. Communicated by James Hunter, M. D., M. S. A . 

 A bottle of the ink, and some specimens of writing executed with it, were 

 exhibited. (599.) Referred to a Committee. An interesting conver- 

 sation then took place with regard to indelible inks in general, and writ- 

 ing papers of different composition, in which Dr Hunter, Dr D. B. Reid, 

 Dr Maclagan, Mr Ponton, and others took part. Dr Hunter stated some 

 other methods of preventing the effacing of writing which had occurred 

 to him ; and of which he promised to give a written notice on a future 

 occasion. 



3. On an artificial method of augmenting the Tone of the Violin. By 

 Mr John St Clair, Teacher of Music, 79 South Bridge Street, Edinburgh. 

 The instrument was exhibited. (588.) Referred to a Committee. 



4. Donation. — Sketch of the Civil Engineering of North America ; 

 comprising Remarks on the Harbours, River and Lake Navigation, Light- 

 houses, Steam Navigation, Water-works, Canals, Roads, Railways, 



I 



