Show aro are one of the sayi most frequent muses causes of fares lit in dwellings all chimneys should be built with sound walls walla and preter preferably ably lined with tire tim day clay flao lining wood k work should not be built into it or in fit direct contact with chimney masor nry chimneys disintegrate most quickly lit at the ilia top owing to the action of oc tho the weather and hot gasses wide cracks mw form or morter joints open up thru which sparke can p pass us sparks are particularly danger dangerous oua it if the crack la Is below the roof cracks and loose joints should be ba twilled with come cement tit mortar if the chimney Is badly cracked or it if the bricks aro are eaten away tear boar down tho the brick work to solid con and rebuild it with hard burned brick laid in coment morter oracles cracks may bo bb located in the chimney by building s smudge tiro in the tha fura chimney with a board or lor so as aa chimney wit hwoard or wet sack eack so BO as to cause the smoke to filter through defects in the bristik abrl work |