648 Of the Excellent Qualities of Coffee. 



lution, the rim attached to the foot of the urn being in 

 its place, the urn and the square box are locked to- 

 gether in a manner similar to that which is used in 

 fixing a bayonet to its musket, and in taking up the 

 urn by its two handles the square box is taken up 

 along with it, and remains firmly attached to it. 



The size of the flame of the lamp is regulated, and 

 the lamp is extinguished when no longer wanted, by 

 means of a rack which moves the wick of the lamp up 

 or down ; and this rack is moved by means of a hori- 

 zontal rod of strong wire, which lies in a small groove 

 made to receive it in the top of the square box. This 

 wire has a small knob at the end of it, which projects 

 just beyond the side of the box; and, as both this wire 

 and the knob at the end of it are painted black and 

 japanned, they are little observed, and consequently do 

 not produce any disagreeable effect. 



Two brass cocks (which are not represented in the 

 figure) are placed at the distance of about 4 inches 

 from each other, at the level of the bottom of the reser- 

 voir which serves for containing the coffee when made : 

 one of these serves for drawing off the boiling water 

 contained in the boiler, and the other for drawing off 

 the coffee; and the words Water and Coffee are in- 

 scribed on their handles. 



This urn has one large cover, 9 inches in diame- 

 ter, which closes the boiler without closing the opening 

 of the reservoir for the coffee, and which appears to 

 form the upper part of the urn ; and another cover, 

 about 4^ inches in diameter, which, being made to 

 fit into a circular hole in the top of the cover of the 

 boiler, closes the reservoir which contains the cylin- 

 drical strainer and the coffee. 



