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them. The coke is worthless for heating purposes. Coal from Rock Springs, Wyoming, was also treated, and is also precisely similar.' These coals are commonly called 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 that 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 the coke is finely powdered, and the heat is properly applied thereto, as hereinafter described, 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 uniform, compact, dense coke.

Another process is mainly applicable to coals in the lump, and by it such coals can be thoroughly coked without disintegration or losing their original form. This is a feature with most of the varieties 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 purpose 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. If 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 importance to the smelting industry of the West. We have not yet seen a specimen of the coke.

In Llano county, near-the base of Packsaddle mountain,