25 



ered them. The coke is worthless for heating purposes. 

 Coal from Rock Springs, Wyoming, was also treated, and 

 is also precisely similar.' These coals are commonlycalled 

 and recognized as lignites ; yet, as other names are given I 

 prefer to denominate them as fossil coals, -and to specify 

 localities at which some of them are found and mined, that 

 they may be definitely known. From these coals I make 

 a serviceable coke, useful for all heating purposes. I coke 

 them on a principle founded on the admitted fact tliat no 

 fossil coals contain bitumen is formed. These constituents 

 are hydrogen and carbon, and sometimes oxygen combined 

 with them. 



In carrying out my invention I use coal, either in the 

 slack or ,finely pulverized state ; but I prefer to use the 

 powdered coal. I have discovered that the more finely 

 powdered coal is better adapted by these processes for 

 making good coke. When tne coke is finely powdered, 

 and the heat is properly applied thereto, as hereinafter de- 

 scribed, the constituents of bitumen will be more readily 

 disengaged, and will combine so as to draw the particles of 

 the coal and make them cohere, and form a uniiorm, com- 

 pact, dense coke. 



Another process is mainly applicable to coals in the 

 lump, and by it such coals can be thoroughly coked with- 

 out disintegration or losing their original form. This is 

 a feature with most of the ^'arieties of the lignites, which, 

 when in the condition of slack, or when once disintegrated, 

 cannot, by ordinary processes, be again caused to cohere 

 and coke." 



Dr. Lynd in practicing his system of coking does not 

 confine himself to any one kind of apparatus, the sole pur- 

 pose of the invention being to make a good merchantable 

 coke from the lignites that so abound in the West. Dr. 

 L. claims that any of these lignites can by his method, be 

 converted in good coke. II: the doctor does not claim too 

 , much for his invention as to percentage of coke and other 

 minor points, this invention will prove of immense impor- 

 tance to the smelting industry of the West. We have not 

 yet seen a speeinjen of the coke. 



FELDSPAR AND POKOELAIN *CLATS. 



In Llano county, near the base of Packsaddle mountain, 



