METALLURGICAL CHEMISTRY AND ASSAYING

J. W. Richards
1903 Journal of the American Chemical Society  
T h e eightieth birthday of the Bethlehem iron-master was celebrated by over 400 engineers a t a dinner in New York. A fund of over $4000 was subscribed, which will endow the John Fritz gold medal, to be awarded annually for notable scientific or industrial achievement. The awarding board is composed of four members from each of the four American Societies of Engineerscivil, mining, mechanical and electrical. Eng. Miit. I., November 2 2 , 1902.-All the workable deposits occur as seams in the
more » ... as seams in the Laramie clays. These have a thickness of 2 0 0 0 feet, and coal is distributed throughout it in varying quantities; at one place 16 seams are in goo feet, one of them 2 2 feet thick. Many seams are near the surface, and the coal is gotten by stripping off a few feet of clay. Several seams 25 feet thick have been measured, and one is 40 feet. The lignites are brown to dull black, usually show the woody structure, contain no sulphur, about 30 per cent. of moisture, and fall to pieces on drying. They burn like wood, with great heat and little smoke, leaving a gray ash. The output has doubled annually for the past four years.
doi:10.1021/ja02005a028 fatcat:zewnpmwoa5ftzid645s4fim2xa