The Cordova daily times., 1922-05-08
U. 5. SURVEY OF SMOKE EVIL TO
 BE MADE SOON

WASHINGTON, May 8. The "smoke evil" in the manufacturing and business center of the large cities of the country is problem that is engaging the attention of the experts of the Federal Bureau of Mines, it was learned recently
 "It is a problem that can not be easily solved" said bureau officials, following appeals from municipal authorities in Akron and Springfield, O., Salt Lake City, New Orleans and other large industrial towns for ad- vice in fighting smoke
 Smoke" these experts say, "the unsightly and offensive resultant of improper combustion, continues it's rayages against the health and prop erty of the American people, regard less of the ups and downs of the in- dustrial barometer"
 They point out that no city in which a considerable quantity of bi- luminous coal is burned is free from smoke. The cities of the East, they say, have avoided this problem by general use of the smaller sizes of an thracite.
 "For this reason" they add, "it' is not surprising that the greatest inn provement in the methods of burning bituminous coal has been made in the Central and Western States"
 Attention was called to the fact that stoves, ranges, house-heating boilers, hot-air furnaces and the like are in 1 tended for the use of anthracite coal or coke "Whenever bituminous coal 1 is burned in such furnaces all the pr1n- ciples of combustion are violated and smoke results" the experts say. "Ihe large cities of the Eastern States, which consume practically all the available supply of the smaller sizes of anthracite coal for power and heat ing purposes now find it necessary to supplement this fuel with consider able tonnage of bituminous coal.
 Except the water power generated by water falls, the larger part or the heat and power used in the United States is obtained from the burning of coal It is evident, then, that for the most part this country must depend on it's bituminous coal for manufac- turing, railroad and power plant pur- ooses. This means that we must improve our usual methods of burning bituminous coal or continue to sui fer from the lack of ecnomy and the smoke resulting from imperfect com bustion."
 According to the governments eX- perts the smoke problem is nearly as old as civilization itself, for coal was mined in Great Britain about the tenth century. In 1906 the king issued a proclamation prohibiting the burning of coal in the city of London because of the "sulferous smoke and savour of the firing" In 1918 the people of London petitioned parliament to pre- vent the importation of coal into the city. Beginning about 1750, when steam was applied to industrial pur- poses, coal began to be used more ex- tensively, and consequently smoke be- came more abundant. In 1919 the government appointed House of Commons committee to inquire into the matter, and there were other in- vestigatione in other years.
 'In the United States the problem, of course, did not develop so early, but as cities of considerable size de- veloped here the problem was also felt, and has been the subject of in vestigations, finally becoming of such importance that extensive investiga- tions were made in Pittsburgh, Chi cago and Salt Lake City"
 The experts point out that smoke less combustion requires the main ply of fuel and air under conditions of suitable temperature, mixing and volume of combustion space" The one word uniformity" they say, em- braces most of the ideas of smoke less combustion.