4122 Proceedings of the Society of Arts. 



Sir John presented to the Society the Map of France for the Blind. 

 Thanks voted, and given from the Chair. 



2. Specimens of Lithography. By Messrs Allan and Ferguson, litho- 

 graphers, Glasgow. (810.) Referred to a committee. 



\\. Specimens of Lithography. By Messrs Maclure and Macdonald, 

 lithographers, Glasgow. (811.) Referred to a committee. 



4. Specimens of four different styles of Window Blinds, made of Pierced 

 Zinc and Painted. By Mr Marc La Riviere, London. Communicated by 

 Mr David Watt, seal-engraver, North Bridge, Edinburgh. (850.) Thanks 

 voted. 



5. Specimens of Perforated Metals for various purposes (one of them 

 containing 2500 holes in the square inch). By the same. (806.) Thanks 

 voted. 



6. Specimens of four different Colours — Scotch Ultramarine, Canary 

 Yellow, Chrome Yellow, and Ness Lake — manufactured by Mr Murdoch 

 Paterson, dyer, Inverness. (803.) Referred to a committee. 



7. Description of a Contrivance for Shutting Doors opening either way. 

 By Mr Daniel Macpherson, 24 Salisbury Street, Edinburgh. A Working 

 Model was exhibited. (796.) Referred to a committee. 



8. Description and Drawings of a Clock Alarum. By Mr John Napier, 

 13 West Nicolson Street. (764.) Referred to a committee. 



9. Specimens of Widening Brooches, Screw Taps, Files, &c., tempered 

 in a peculiar manner, so as to leave the centre soft, while the surface to 

 any required depth is as hard as possible. By Mr Dougald Ferguson, 

 smith, St Enoch's Wynd, Glasgow. (618.) Referred to a committee. 



The following Reports of Committees were read and ap- 

 proved of viz. : — 



10. On Mr Thornthwaite's Lamp for Divers. Mr Sang, convener. (786.) 



11. On Mr Whyte's Life-Preserver. Mr Craufurd, convener. (795.) 



The following Donations were received viz. : — 



12. Two Specimens of Weaving in Silk, in imitation of Engravings, 

 from the Imperial Works at Alexandroski, near St Petersburg. 



1. A Portrait of his Imperial Majesty the Emperor Nicolas. 



2. A Landscape. 



Presented by Lieutenant- General Alexander Wilson, I.R.S., Hon. 

 M.S.A. ; through Dr D. B. Reid, M.S.A. (788.) 



13. The l7th Annual Report of the Manchester Mechanics' Institution, 

 1841. Presented by the Directors. (802.) 



14. The Civil Engineer and Architect's Journal, Nos. 42, 43, and 44. 

 Presented by the Proprietor. (808, 809, and 812.) 



15. Discourse on the Objects, &c. of the National Institution for the 

 Promotion of Science, established at Washington 1840. By the Hon. 

 Joel R. Poinsett, Secretary of War, and a Director of the Institution. 

 Presented by the Institution. (813.) 



