§30 VENTILATION OF MINES OR HOSPITALS. 



and thinks it likely to be of great service in general prac- 

 tice, more especially on account of the business being ef- 

 fected with little expense. That many carts are already so 

 formed, that very little additional apparatus will be re- 

 . quired to complete them for the purpose. 



IV. 



Method of Ventilating MineSy , or Hospitals ^ by extracting 

 the foul Air from them: by Mr. John Taylor, of 

 Holzcell, near Tavistoc/c *\ 



SIR, 



J. SEND you herewith a drawing and description of a ma- 

 chine of my invention for the ventilation of mines, with a 

 Ticw to their being laid before the Society for the Encou- 

 ragement of Arts &c., and hope they will meet with their 

 approbation, 



I am, Sir, 



Your obedient servant, 



JOHN TAYLOR. 



JlolwelL April 9, 1810. 



On the Ventilation of Mines, with a Description of a nezo 

 Machine for that Purpose, See PL X, Fig. 3. 



Importance of Next in. importance to the means employed for draining 

 iremilating underground works from water may be reckoned those, 

 which are intended to afford a supply of pure air, sufficient 

 to enable the workmen to continue their operations with 

 ease and safety to themselves, and to keep up, undiminished, 

 the artifical light upon which they depend. It is well known, 

 indeed, to all who are practically engaged in concerns of 

 this kind, that men are frequently obliged to persevere in 

 their labour, where a candle will scarcely burn, and where 

 not only their own health materially suffers in the end, but 



^mes, 



* Trans. Soc. of Arts, vol, xxviii, p. 219. Tlie silvei: medal 

 was voted to Mr. Taylor. 



theljT 



