cannel coal, semi-anthracite and anthracite ; in a word, all the varieties of coal known to scientific and practical men. Vegetable fiber is composed of carbon, 36 parts ; hydrogen, 22 ; and ...

F. Isherwood, Chief Engineer, U. S. N., it appears that the Collin's steamers use anthracite on the voyage to Liverpool, and Welsh coal, also an anthracite, on the return voyage. The Welsh coal ...