140 CARBONIZATION 0¥ TURF. 



K, the ash-hole, nearly in the form of a wedge placed 

 horizontally. 



Fig. 2. A, a, tubes to convey the gases from the thcr- 

 molamp into the condenser. 



E, e, keys to cut off the access of the external air to the 

 charcoal, while yet hot. 



C, c, tubes to convey the gases that are not condensible 

 into the fire place. 



F, f, condensers to be employed at pleasure. F is a 

 stone hollowed out, and properly covered : f, a tub, or, if 

 it be preferred, a small cask. 



S, S', the pipe for the discharge of the distilled fluids. 

 Fig. 3. The carbonizing or thermolampic apparatus. 



A, a, tubes issuing out of the furnace. 



B, a crook to keep in its place the part opening at the 

 side, where the masonry forms a door closed with dry bricks, 

 removed and replaced at every operation. 



C, body of the apparatus. 



The dotted lines express the parts that are concealed, and 

 are continuations of the lines drawn full. 

 Plate IV. Plate IV. Fig. 4. Interior view of a fire place for burn- 



ing turf, or turf charcoal. By this construction it appears, 

 that the disagreeable effects ascribed to the burning of turf 

 are avoided. 



A, mantletree of the fire place. 



B, a plate of metal, rising and falling in two lateral 

 grooves by means of the two copper buttons, C, C. 



E, the back, formed of a plate of cast iron, sloping at 

 the upper part. . 



D, D', the mantle-piece. 



F, F, the sides, formingan angle of 135° with the bottom. 



G, a kind of box, consisting of two grates ; the interior 

 one forming a pretty open angle with the bottom of the fire 

 place ; the other, making the fore part of the box, and con- 

 sisting of two or three parallel bars. By this arrangement 

 the turf, which requires only a very rapid current of air to 

 burn it, is isolated. 



H, the length of the bottom of the box, formed like the. 

 other part of common cast iron. 



I, th* 



