r 382 ] 



wall, at the bottom of your kiln, leave at equal dif- 

 tances three or four vent-holes about two feet wide 

 and two feet high, placing three or four flicks acrofs 

 each vent-hole like lintels over windows. The build- 

 ing being thus finiflied, you mufl: throw four or five 

 loads of the dryefl turf on the crown of the pile. 

 When all is thus in readinefs, with ftraw kindle the 

 fire at once at all the vent-holes; and when you 

 think that the whole pile is on fire, you are to ftop 

 up entirely the vent-holes, walling them up with turf, 

 like the reft of your heap: then, from time to time, 

 you muft fupply your heap with the quantity of turf 

 and clay that you will find neceffary, which you muft 

 guefs at from the fmoke that comes out of the top at 

 the heap. If it fmokes furioufl}^, it is a fign that 

 the fire is too quick, in which cafe you muft throw 

 clay in greater plenty, which will force the heat 

 through the fides; but if the fmoke comes out but 

 very flowly, you muft ftop your hand, and give the 

 heap a little air, by making holes through the crown 

 of it with a long fliarp ftake, and afterwards throw 

 gradually and with judgment clay and turf alternately. 

 When, by throwing, you have raifed your heap as 

 high as you can conveniently, and the fire has nearly 

 reached the top, you muft rake down the red-hot 

 afties with a long dung crook, covering them imme- 

 diately with turf; meanwhile the wall will be burn- 

 ing through, and to fupply the place of it a new 



one 



