Show enri coba muan 0 our english coal ia of a loir qu alit not only does it con anc slate and other earthy impurities but alo unfortunately pentes more thin one half of which consists of sal chur our coal fields are being whorled out with a velocity which produces pro duies ans oty in the minds of all who are inter kited about the future ot the country we cannot afford to waste even the poorest kind of fuel and the propriety of has repeatedly been with powerful arguments but in tho meantime the burning of iia pure and dirty coal is a source of anbu to and of injury ic ra A of mr outings Lu tings appears U be an improvement upon various pre attempts it possible foi colliery owners to clean and to some extent purify without great the coal befaro it is sent anav tle system involves 3 ateneo of operation in which are dry separation breaking sizing washing recovery of sludge automatic transportation etc it is said that the method is already in successful operation in many places al from a sanitary no less than irom an economic point of every one must hocq for its success bundon lancet |