Proceedings of the Society for Useful Arts. 36S 



gree of talent and research, and forms, what the author wished it to be, 

 " a manual to the physician in selecting a proper climate for his patient, 

 and a guide to the latter while no longer under the direction of his medi- 

 cal adviser/' We would therefore strongly recommend it to the notice 

 both of professional and general readers, and we trust that Dr Clark will 

 be enabled, in subsequent editions, to avail himself of the latest information, 

 which either his own observations, or those of his professional brethren, 

 may from time to time supply. 



Art. XXIII.— proceedings OF SOCIETIES. 



1. Proceedings of the Society for the Encouragement of the Useful Arts in 



Scotland 



April 29, 1829. — 1. An Orrery, constructed from new calculations, which 

 exhibits the motions of those planets that are visible to the naked eye, with 

 some of their satellites, which in their epochs and revolutions make a near 

 approximation to the times of those bodies which they represent, invented 

 by Mr Forrester, Teacher, Kirkaldy, was exhibited to the Society, and 

 a description of it read. A committee was appointed to examine into the 

 merits of the invention. 



2. A Description and Sketch of an improved Turning-Lathe„ in which 

 the band is applied in a peculiar way, so as to increase the power of the 

 lathe, and decrease friction of the mandril, by Mr John Henry, 49, Leith 

 Wynd, were read and exhibited, and a committee appointed to examine 

 and report 



3. The Committee on Mr Brown's Mangle gave in their report, which 

 was favourable. 



4. The Committee on Mr Macdonald's Instrument for the use of 

 Tailors, gave in their report, which was very favourable. 



5. The Committee on Mr Aytoun's Lighthouse Machinery gave in 

 their report, — recommitted, with instructions also to report on Mr Robert 

 Stevenson's method. 



6. A Letter from Charles Grey, Esq. was read, relative to a mode of 

 preventing Collision of Steam Boats and other vessels, either on u river or 

 on the open sea, by means of two lights of different colours, the one sus- 

 pended forward and low, the other more aft, and much higher than the 

 fore-light. 



Mr Archibald Horne, Accountant, was elected an Ordinary Member. 



May 27. — 1. Mr Edward Sang read an account of the best form of the 

 Grooves for the Pulley of the Foot-Lathe, so as to increase the friction of 

 the band, and give additional power to tlie lathe. 



2. The Committee appointed to ascertain the merits of Mr Henry's 

 method of passing the band on the pulley of the foot-lathe gave in their 

 report, which, upon the whole, is favourable ; but from the rude manner in 

 which the lathe to which it was applied was constructed, they found it im- 

 possible to judge of the full effects of the plan. The Society appointed the 



