344 MANURES. aj. 



argument in favour of {landing kilns is, that 

 a greater proportion of well-burnt lime may be. 

 produced from the fame quantity of coals. 

 It is allowed that more kindling fuel is re- 

 quifite ; and, at the bottom, a greater pro- 

 portion of coals ; but the fire by this means 

 getting a ilrong head, a lefs proportion of 

 coals are required in the body of the kiln ; 

 and what, perhaps, is of ftill more confe- 

 quence, lefs h^at is loll: at the top of this 

 than of the draw kiln ; which is always un- 

 covered, and too frequently hollow and full 

 of cracks; while the top of the (landing 

 kiln being piled up in a conical form, and 

 clofely covered with fods or rubbilh, colledts 

 a greater body of lire, and keeps in the heat 

 more effedlually. 



One civcumftance, however, relative to the 

 {landing kiln rciiuircs to be mentioned. The 

 iniidc fhould be lined with brick. For every 

 time a kiln which is lined with limeflone is 

 fufiered to go out, a fhcll of lime peels off the 

 infidc; by which means the walls are foon 

 impaired. 



The lia-iC is drawn out at the " eyes" with 

 a fhovel, and generally carried out m fcuttles, 



or 



