Show new dust killing machine consul general robert J wynna reports that a new tar spraying ing machine which the makers claim ill do away with the dust nuisance has haa been tested on the roadway in iii front of the horticultural ti hall westminster london before practically the whole of the municipal engineers a large number of county surveyors and suburban en gin fincers gl cers and two representatives appointed by the war office after the tars playing pince pincers s a second machne machine scattered a lei level el aa laer er of granite grit and chips annon an tho the tai which when tolled rolled formed a road with mith a fine smooth surface aur face dinaple dm able and dustless A tar macadam load boad made in this vay ay costs fron fronic sc gd cd to as sa to 97 cents a square yard as ag against ordinary macadam which costs on an average as ad GO cents ii a square yard |