4:26 Proceedings of the Society of Arts. 



in Plaster of Paris, wliich has recently been invented in Paris. The spe- 

 cimen (the liand of a child) -was much admired. (657.) Thanks voted. 



4. Description, with a Drawing, of a Method of filling the Boilers, 

 either of Land or Marine Engines, which may be done either when the 

 engine is, or is not, in motion. By Mr John T. Rose, Cromwell Street, 

 North Leith. (575.) Referred to a Committee. 



5. Description and Drawing of an improved mode of filling the Boilers 

 of Steam Engines with Water. By Ditto. (579.) Referred to a Committee. 



6. Letter from Mr James Whitelaw, formerly in London, now in 

 Glasgow, about his Plan for feeding Boilers (553), with four Numbers 

 of the Mechanics' Magazine, in which he refers particularly to a modifi- 

 cation suggested in the P. S. to his description in No. 769 of that Maga- 

 zine. (576.) Referred to a Committee. 



7. Descriptions and Drawings of a method of increasing and diminish- 

 ing the Distance of the Floats from the centre of the common Paddle- 

 wheel ; and of three modes of filling Steam Boilers with Water. By Mr 

 D. T. Hope, 34 Buccleuch Place, Edinburgh. Referred to a Committee. 



8. Descriptions and Drawings, 1st, Of a method of Working the Valves 

 of a Steam Engine, which combines the simplicity of the excentric mo- 

 tion with the advantages of the hand-gear engine (619) ; 2d, Of an Uni- 

 versal Joint of a new construction (620) ; and, 3d, Of an improvement 

 on Friction Cones. (621.) By Mr James Whitelaw, Engineer, 4 Welling- 

 ton Street, Glasgow. Referred to a Committee. 



9. Letter regarding his mode of Lighting Shop Windows, and his Inside 

 Sashes for such windows (182), formerly submitted to the Society. By 

 Mr Thomas Johnston, 137 George Street, Glasgow. (630.) Referred to 

 a Committee. 



10. A new method of Saving Life and Property at Duddingston Loch 

 and Water of Leith. By Mr John Baillie, 28 Cumberland Street. (633.) 

 Thanks. 



11. Description of a Self-acting Water-Closet, with Bali-Cock. By 

 Messrs John Bryden and Sons, Bell-hangers, 80 Rose Street, Edinburgh. 

 A working model was exhibited. (646.) Referred to a Committee. 



12. Description of a Bank-Safe Lock. By ditto. The Lock was ex- 

 hibited. (647.) Referred to a Committee. 



13. Donation. — Transactions of the Institution of Civil-Engineers, 

 London, Vol. IIL Part L From the Institution. — Thanks voted. 



14. The following Report of Committees were read, viz : — 



(1.) On Captain Hay's method of Stopping Leaks in Steam Boilers. 

 Mr Maxton Convener. (602.) 



(2.) On Captain Hay's Lute for Steam Pipes. Mr Maxton, Con- 

 vener. (603.) 



(3.) On Mr Sang's]WavIng Bar for Ruling Machines. Sir John Ro- 

 binson, K.H., Convener. (615.) 

 "»^<(4.) On Mr Macpherson's Stereotype Mould-lifting Machine. Mr 

 Russell, Convener. (610.) 



