Show FIREMEN HERE USE PERISCOPE TO LESSEN CITY SMOKE CLOUDS Although a a. long distance from Salt Lake to lo the scene of the submarine warfare yet the principle prin prine ciple of the tho periscope or eyes of or orthe the time submarine has been applied in this city in an effort to reduce re reo re- re duce duco the smoke cilBy evil il By means of tho tIme periscope the crew of the submarine submarino can see what is going on above them themon on oil the thc surface of or th the ocean Similar plans have been applied to tho the smokestacks s b by the time smoke abatement department of the time city I inspection bureau and it is possible ble lle by hy this means for a fireman to see sec time the top of his smokestack smokestack smoke smoke- stack from ron his position in front of or the time furnace door When the fireman can see the top of or the time smokestack he ho can cami toll just how much air to admit over oyer the time fire to burn the smoke But as is nearl nearly the case the boiler room is located In a remote place and a trip from the furnace to a vantage c point to view yiew the tho top of the smokestack Is a hardship and impracticable An arrangement has been perfected perfected per per- whereby by hanging a n mirror where it will reflect the I top of tho tim stack the tho fireman can obtain a perpetual view at any time of or the tho volume of smoke Issuing from it and thus governs the supply of ot air decreasing the quantity of ot smoke and amid lessening the cost of or fuel for Cor it has been clearly clearl proven that where the furnace furnace fur fur- nace burns the smoke it reduces the thc fuel bill hIlI by about one |