Proceedings of the Society of Arts for Scotland. 365 



The following gentlemen were elected Members : 



Ordinary. 



Thomas Grainger, Esq. civil engineer, Edinburgh. 



Robert Fraser, Esq. Newington, Edinburgh. 



Associate* 



James Smith, Esq. DeanstOun. 



Dec. 17.— Mr Alexander Doig explained the nature and uses of his 



clock pendulum without verge or fork, and again exhibited his working 



model of it. 



Captain Maconochie, R. N. exhibited and described very fully mo- 

 dels of a Steam Tug and Flat Boat, on new principles and construction, in- 

 vented by him. 



Mr W. H. LiZARS read a letter from Mr Alexander Cowan, paper- 

 maker, Penicuick, sending him some specimens of paper made by him at 

 the request of Mr Lizars, from the masses of stuff from Nepaul, sent from 

 India by George S win ton, Esq. and exhibited to the Society (in mass) 

 upon the 5th of March last. Mr Lizars exhibited and presented to the 

 Society the specimens of this paper, which is of a bladdery kind, and does 

 not take a good impression from a copperplate. Mr Lizars also exhibited 

 and presented to the Society a specimen of copperplate printing on a piece 

 of Cobbetf.s Indian corn paper, which had been sent him by Mr Cowan. 

 The Indian corn paper takes rather a good impression from copperplate. 



Mr John Milne was transferred from the list of associate to that of Or- 

 dinary Members. 



January 7, 1829. — A description of a clock pendulum, which receives 

 the impulse directly from the swing wheel without the intervention of fork 

 or crutch, invented by Mr David Whitelaw, watchmaker, 16, Princes 

 Street, Edinburgh, was read, and the pendulum exhibited in action. 



Mr Edward Sang read a paper regarding a new phenomenon discover- 

 ed in Iceland spar. Numerous specimens were exhibited in illustration. 



January 21. — Mr James Gr^me, W. S., was admitted an Ordinary 

 Member. 



Captain Maconochie, R. N., read a paper on steam-towing, demon- 

 strative of its application to General, but more particularly to Mercantile, 

 navigation ; and exhibited models in illustration, which he presented to 

 the Society. 



A model of a door alarum by Mr James Forbes, Old Meldrum, was 

 next exhibited to the meeting, and a description of it read. 



February 4. — Mr John Miller, civil-engineer, was elected an Ordinary 

 Member. 



A new hydrometer, invented by the late Mr Lunan of Aberdeen, was 

 communicated by Mr John Armstrong, and exhibited and explained by 

 Mr Adie. 



A description of a new door alarum, invented by Mr Robert Eraser, 

 Jeweller, Princes Street, was read, and a model exhibited and explained 

 by the inventor. 



Mr Whitelaw submitted an enlarged description of his pendulum 

 without fork or verge, which was read. 



