334 USEFUL pnoDtJCisf fhom coal. 



Mr. G(rfd»k having desired me to make a trial of it, the tray, 

 br waiter, accompanying this paper, was got up in my ma- 

 nufactory, and is a specimen in proof of its usefulness. 

 The varnish used for this purpose I made myself; anrd, in- 

 stead of mixing it with the usual spirit or oil imported, 

 •which is now become excessively dear, I mixed it with the 

 Spirit, or oil, extracted from coal-tar ; and I can truly af- 

 firm, that, far from its being a substitute inferior in proper- 

 ties to the spirit in general use, I esteem it far superior in 

 several respects. 



In the trial I made of it, I found it would dry quicker, 

 and the varnish mixed with it would polish with more ease, 

 bear a good lustre, and, in short, answer every requisite 

 purpose of the foreign spirit. If to these be added the rea- 

 sonable price at which it may be sold, I cannot but pro- 

 xiounce it a discovery, that must eventually prove greatly 

 advantageous to the manufacturer, as well as interesting to 

 every lover of the arts, or admirer of talent and ingenuity.- 



Witness my hand, the 16th day of January, 1810, 



J. S. LE RESCHE, Japanner, 

 Church street, Birmingham. 



Refei'ence to Mr.- Cook's Apparatus for preparing Gas and 

 and otkcr Products from Pit-Coal., Ph IX. 

 Aj Fig. 1, PI. IX, is a common fire-place, a stove built 

 with brick, having cast-iron bars to put the fire in at, and a 

 flue that goes into a chimney ; A is the cast-iron pot, (which 

 holds from twenty- five to one hundred pounds of coal, ac- 

 cording to the size of the premises to be lighted) which 

 hangs by the bewels or ears on a hook, suspended by a chain 

 in this stove or furnace, about three inches above the bars 

 of the grate, and three inches distant from the sides of the 

 stove; the fire then flames all round this pot, and as it does 

 not rest on the burning fuel, it is the flame only that heats 

 it, so that it docs not scale, but will last for years. The 

 smoke «Scc. are carried off into a chimney. The cover d of 

 i}\e pot is made rather conical, to fit info the top of the pot 

 close, and from the top of the cover the elbow-pipe pro- 

 ceeds as far as the mark a. The other end of the pipe with 

 the elbow entering the water-joint is rivclted to it after; 



when 



