172 Mode of Heating Rooms ly Steam. 



has found them in any other treatise, prior to the publicaliori 

 of mine in 1801, I will publicly retract the whole that I have 

 written on Mr. Bonnycasile's loork. 



Keith's Trigonometry . Bonnycastlcs Trigonometry* 



Example 4th, page 237 Example sJ, page 209 



3d, —242 2d, 213 



9th, 243 3d, 213 



— 4th, 246 2d, 217 



— 6th, 246 3d, 217 



— 4th, 260 '2d, 226-227 



— 6th, 261 3d, 227 



— 3d, 264 2d, 228 



— 4th, 265 3d, 22? 



— 2d, 266 2d, 231 



— 4th, 268 &c. 3d, 232 &c* 



" I am, sir, 



** Your most obedient servant. 



No. 18, Norfolk-street, « ThOMAS KeITH.' 



Fitzroy-square, 

 March llth, 1807. 



XXIX. Mode of Heating Roomsly Stea?n. By Mr. Neix, 

 Snodgrass, of Johnstone, Renfrewshire * > 



HE undersigned memorialist, having several years since 

 invented, and successfully put in practice, a method of heat- 

 ing rooms, which he flatters himself will be found to fulfil 

 the conditions for reward required by the society, begs leave 

 to propose himself as a candidate for the honour of such re- 

 ward. 



Neil Snodgrass^ 



Johnstone, Feb. 18, 1805. 



To C. Taylor, M. D. 



' From Transactions of the Societtj of Arts, &c. vol. xxiv. — the society V 

 guld medal, or forty guineas, was voted to Mr. Snodgrass for thi» communf* 

 cation. 



Reference 



