Proceedings of the Society of Arts. 455 



map of tlie levels of Edinburgh and environs ; which will be done by 

 subscription, if sufficient encouragement be given. By Mr William 

 Moffat, 8 Middle Row, Knightsbridge, London. 



2. Description of a Portable Warm-Air Stove, heated with gas j 

 adapted at same time for other domestic purposes. Invented by Mr 

 Robert Ritchie, ironmonger, 241 High Street, and 86 George Street, 

 Edinburgh, Memb. Soc. Art^^-. 



♦ 3. A Spring Slider for the Bottom of Doors, which, when the door 

 shuts, slides down, and prevents a draught of air into the room or 

 house. Communicated by C. G. Stuart Menteith, Esq. of Closeburn, 

 Memb. Soc. Arts. 



4. Supplement to his Essay on Improvements on the Syphon. By 

 Mr Jonathan Davidson, ironmonger. High Street, Edinburgh. 



A working model will be exhibited. 



March 26. — 1. On the Source of the Advantages of a Long Screw- 

 Driver. By Mr Edward Sang, Teacher of Mathematics, Edinburgh, 

 Memb. Soc. Arts. 



2. A Grand Orrery, representing the Solar System, and calculated 

 to convey an extensive and accurate knowledge of the Movements of 

 Celestial Bodies. Invented and constructed entirely by Mr John 

 Fulton, Fenwick, Ayrshire. 



3. Suggestions regarding the substitution of Steam in place of the 

 Breath in Blowing Glass ; with a Sketch of the Apparatus. By T. 

 S. Largs* 



4. Donation. — The first Number of the Architectural Magazine, 

 and Journal of Improvement in Architecture, Building, and Fur- 

 nishing, and in the various Arts and Trades connected therewith. 

 Conducted by J. C. Loudon, Esq. Hon. Memb. Soc. Arts. From the 

 Conductor. 



Samuel Eaden, Esq. Red Hill, Sheffield, was admitted an Ordinary Mem- 

 ber. 



April 9. — 1. Suggestions in regard to the Adaptation of the new- 

 ly-invented American Steam-Boat to Canal Navigation, By Mungo 

 Ponton, Esq. W. S., F. R.S.E. Memb. Soc. Arts. 



2. A new Pivot Castor for Furniture, possessing the advantage of 

 retaining the Oil for an indefinite length of time. By John Robison, 

 Esq. F.R.S.E., Vice-Pres. Soc. Arts. 



3. A Pocket or Portable Cooking Apparatus, used on the Conti- 

 nent, was exhibited in operation. By Mr Robert Ritchie, ironmonger, 

 &c. to their Majesties, 241 High Street, and 86 George Street, Memb. 

 Soc. Arts. 



