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Show Motor Cars Increase Fosruicss. Foggy as London Is. it Is In process proc-ess of being made foggier still by tho smoky exhausts of motor cars. i Tho T-incct. London, pays that there f is "Increasing murklncss" in the i streets. jj In stagnant conditions of wcath- j er, as on a fine sunny day or dur- , Ing a windless drizzle of rain, quite A a haze of petrol fumes accumulates, 1 which Is very unpleasant to the H pedestrian. Such an atmosphere Is, jl of course, inimical to healthy con- i ditlons. j Unburncd petrol or partly burned ollls frequently present In notable j quantity, which is not favorable to healthy respiration, nnd a suspicion r has been ontortalned that tho pres- j ence of so much oil in tho air dig- turbs the protective qualities of paint. f Modern traffic has. in fact. In- troduced a totally new condition of things in regard to the state of the air in the streets, and it will not bo surprising if in the long run mis- chief In more th,nn one direction ? comes to be traced to the acrid fumes which aro accompanying the f. motor, traffic. ... M Wo anticipated some years ago f, that the contamination of the streets would pass from a purely physiological kind to one of a chemT leal nature as we discontinued horse traffic in favor of motor traffic, t; That has practically -come to pass, jc Improvements have, how- v ever, been mado during tho past t few years In the engines of tho mo- i tor car. and wc may hopq that soon ' i they will be rendered practically ; fumeless. which will imply a more 15 economical use of fuol in addition ?) j to the suppression of an obvious nuisance. 'iO |