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Show PIRB-REBIBTINa MATKHtAL. AVJ A rUlMf TU.I IIms x, Transit Meet BV 1. (Tm UhUb it Com. jBfl The most vital step In coostruoUnsj BB thoroughly fireproof buildings nowtvi BBJ days Is th substitution of stone, brisk. BB terra cotta, metal and other Inoombue- BBj tlble material for wood, aad th eeai- H plete elimination of th latter from the BBJ edifice. Dot It Is not practicable U BBJ carry out thU latter part of the pro BBJ gramme without much expense, aad BBJ therefore endeavors have beta mad BBJ Id render lha wood fireproof. On way BBJ of attaining that object Is to treat It BB chemically and fill th pore with sub- BBJ stances thst will discourses oombus- BJB tloa This Is th plan tolltwed BBJ warships today Anothir Idea which BBJ has been received with favor I to BBJ cover the wood after It I In place with, LBB plaster composed of lime and vge BBJ table fiber, to give Ihe compound BBJ body, and certain chemicals to resist .BH 'the fire, A test of in Invention of thla latter class wat made In London st few dsys ago The author ot the sys- H tern, named Itous, sod a number of ex- BBJ pert! were present The Pnll Mall Oa- H telle tells the story lilt of wood, gBfl were costed to a depth of three-quar- BBJ tert of an Inch with the stuff sad tbea BJB subjected to lb flame ot a blewplpe. gBfl Similar specimens were thrust Into a BB boiler furnace Tbe blowpipe, used continuously far twenty minutes did H not sensibly raise the temperature un- BBJ der Ihe compound The piece of plas- H tered wood that was put Into the fur- BBJ nace alayed there half an hour. When. H It waa removed the coating was chip- BBJ ped off with a tool, and th wood BBJ ahowed a toroperalure ot only T de- gree Fahrenheit. The only costly In- BJBJ gredlent of Mr. Itous' mixture la tunc- BBJ state of soda. BJBJ |