342 MANURES. 21. 



tain, 'and therefore an improper wa}' of pro- 

 ceeding. Much depends on the regularity 

 and evennefs of the layer, and the due pro- 

 portion of coals ; and to judge of this with 

 fufficient accuracy requires fome experience, 

 and a fleady eye ; cfpecially when the kiln is 

 on fire, and the cavity to "be filled up is full 

 of fmoke. If more than one perfon be em- 

 ployed in this cafe, it is highly probable the 

 work will be imperfedtly done. 



Amono^ the fale-kilns about Mai ton there 

 is an excellent regulation in this refpeft. The 

 fcuttles are all filled, and brought to the top 

 of the kiln, by women and boys, who deli- 

 ver them to the master, or his foreman, 

 flanding there to receive them, '■juith bis eye fix t 

 within the kiln ; by which means he is en- 

 abled to dif!:ribute the fl:ones and coals with 

 the greatcit accuracy. 



5. Drczving. There are two fpecies of 

 kilns ; cr rather one fpecies ufed in two dif- 

 ferent ways. 



A kiln which is filled, fired, and fufTered to 

 burn out before any of its contents be drawn, 

 is called a *' standing kiln." 



If 



