Show IF ©SXSfir (?-©6r- Oft m SP fry -r- fcv-JSL vfs'Sf- -' i ' “ ' $ ?!ft f'(M3£SHs03 i If & - ' a and ten tons of solid material in the cloud over 4 New York The average city dwello er usually is unaware of the condition of the air he breathes He even wears a cloak of dirt and I— dust without knowing it y In the Summer when his t r ' Is ""i t office windows are open r ) I SV ' U- ” he does not realize the 1 j— ” i ' fine film of dust that colz:£ ' — v‘ Ir ftTrfs-"— lects upon his desk in the course of a morning If he sits out in the sun to absorb the healthful ultraviolet rays he is covered with soot that prevents the rays from reaching him The effects of inhaling (International Newsreel' such dirty city air have Particles That been a matter of conPhotograph of the New York Skyline Is a Drawing Showing Some of Contribute ttf the Dust Cloud and Contaminate City Air troversy among physicians Some of them maintain f that it has little effect upon the city dweller -that he becomes quickly immune to its ill effects and that his respiratory system removes much of the soot and dust before it reaches his lungs Others claim that the ) lungs soon become blackened and weakened Dr Thomas Darlington former health commission-e- r of the City of New York is not AW very optimistic about the subject “The New Yorker” he says r little pure oxygen and almost less“get3 sunlight I have performed autopsies upon New Yorkers many and almost without exception their lungs were black as night” Many city dwellers think that after Tf a rain or snbw or a strong wind the entire 6moke and soot cloud over the city is dispelled But this is not so Dr Free in his investigations in New York found that most rains have very n little effect upon the cloud Some of the rains remove the dust and smoke but it is only for a very brief period it: U ' Chimneys belch forth their streams of soot continually and for every particle that is blown away many more come to take it3 place Industrial plants have come in for the major share of blame for adding to the clouds of smoke and soot over large cities in the United States Buf if New York caji be taken as an exRecent Tests Have Shown ample the facts do not justify this & That at- 4 A 31 the City Conclusion It is the opinion of the inAir Is Purest While at the vestigators that chimneys on private rA 9 A M the Dust Cloud honjes office buildings and apartment houses are the greatest causes of the Over the City Is smoke and soot Thickest The vast cloud of dust and soot has a deleterious effect upon the growing ft der the microscope he was vegetation within a large city Shrubs amazed at what he saw and trees put up a brave struggle in n Practically all of the dust the a£r but scientists claim those of particles were are doomed This is eventually they and in addition soot the explanation by Dr William given there were those particles Crocker director of the Boyce Thompwhich have' already son Institute for Plant Research: been enumerated 3 “What is there to city smoke that Dr Free proceeded ' " injures plants? First the smoke cuts &) to count the number of down the light that reaches the plant soot and dust particles is absolutely essential beThe in a cubic foot of air causelight the “ iiintfXiirieF v i out of which the is it and found that there tree makes its energy Reduce that enfood were more than half a and food the ergy supply of the tree On another million reduced is y A New Rotating Machine Which day he counted over second tars and the the “In place 800000000 particles soots in the air cover the leaves and Not Only Cleans Floors but in a single cubic foot cut Also Absorbs the Dust and out a part of the light that reaches of air fi Soot in the Atmosphere down the interrfai part of the Prbfessor H H Shel-- j leaves into ' where the manufactureof food ' don of New York ' lead down on little The that t pits : his data on the goes the- leaves are filled up It is in into One of the Two versity soot and the dust of weight huge these pits that the process goes on of Sr cloud by observing a large air cleansand carbon and givoxygen absorbing York Horsepower over set TJew in ing apparatus Machines Used in periods of time He erected such an ing off carbon dioxide the New York “In the third place the gases In the apparatus in the Times Squara theatLife Insurance and in the atmosphere are insmoke rical district which drew in air at roof can think Building to level In one week the apparatus jurious to the plants" You on two procas Produce a the of carrying plant cleaned 841250000 cubic feet of air and one Vaccum for food one esses of consuming solid and removed twelve cubic feet of of or food the of Clearing the Air matter weighing thirty-fiv- e making synthesis pounds dioxide of Impurities carbon water the and food from This Attendant Perched ona a High rom this data Professor Sheldon comtoxic gases in Ladder and Equipped With la Special puted that there were between five in the air If you use plants the first process Vacuum Apparatus Clean the Ceiling hit is the - synthetic in the New York Life Insurance Buildprocess If a Similar Method Could Be ing ' “Thai toxic gase In Used in Cleaning the Cloud Aoove the the air cause the starvaThere (Would Be Less Impurity tion of ‘the trees by in- - x Qty in the Air a i i s terfering with the foodalso and making process j above are not Many by stimulating the resobservers note a marked - beneficial the of piration plant” effect of the cloud upon city vegetaIf New York could tion It tends together with the I build a wall that would tall and the narrow streets buildings Jf keep out the West wind to retain a certain amount of beat over W it would eliminate 19 large cities throughout the year New per cent of the smoke York for instance is several degrees dust and dirt that blow v warmer than the adjacent country in into and about the city acWinter cording to David R Morris In addition commissions meteorologist at the Central In various large cities are working to Eastern I free communities’1'- - of the Park Observatory winds blowing m from the Laws prohibiting “excessive”nuisance smoke Atlantic would be purifying have been passed These include the This Vis tMri use of soft coal in of course private homes 'Morris’ calculations as to the its pse to factories in outpercentage of impurities conlying district! In recent years when tributed by winds: cases involving a violation of the genNorth wind 13 per cent i eral law covering such nuisances as Northeast 9 per cent East noise and smoke have come tto court 12 per cent Southeast 11 the defendants usually have been cent found guilty per cent South 10 per ' 14 per- - cent Southwest So while engineers and Scientists West 19 per cent Northwrestle with the problem of smoke and An Apparatus That “Breathe” In the City Air and Register Its Dust and Smoke-Contewest 12 per cent soot in the air and count air particles Yarda howCubic Million It Tests Showed Some Alinutes here and there in large cities $t is That Fifteen Every investigators Every ever assume claim to of that even a dost clou all the that Pound Contains an of Average of 135 Impurities tf New York’s Atmosphere dour conclusions outlined a silver lining t 4 g X i ' i U! Xwnpapw Tttir Series list I ?U J'- - LTrftfi - s w -- 'Trr s5 -- I t-- s - d ' Rubber Tires Leather Brick an v r-'--i ?£$ & ‘ 1 ’ &msa 'i Above This Remarkable m)nKt '' m® 0 "El i) mm " it 0 iawi fl055B£r A fl swsr flfSPo UsXo)® I rXSJGJXg? a cF©1 ' ° Glass— as Well Contribute to That asSootand Smoke— All u Dust Cloud Over the Big City ' ' 1 t' 'm -- V' M X M - V V r V - ' I ' x v - ' k x This Is One of the Thousands of School Children In Philadelphia Being Trained to Examine Their Throats With the Use of Mirrors to Discover Any Inflamed Condition That May Arise from Inhaling Dusty Air soot-laae- a couple of tons of soot and ' and liberally mix with hundreds of pounds of minute particles of dust rubber tires asphalt A leather brick glass cotton fibres and 1 various organic material Diffuse this weighty mass of matter into the air in the shape of a cloud two thousand feet thick Suspend this cloud over any large industrial fcity 4 That is a close approximation of the atmospheric condition in which the major cities of the United States now find themselves Scientists and engineers recently have compiled extensive data on the huge mantles of dirt and discomfort which hover continuaiiy cer these cities and the published results of their findings have amazed the city dweller i For the first time it is possible for the urbanite to learn what is in the air he breathes and what it is that discolors his beautiful city buildings roils his laundry affects his health and Ji-y- '7 plays havoc with the vegetation in his Jr parks and public squares It is this vast cloud of soot and dust particles scientists find that is reCl for his personal discomfort sponsible ' F rom millions of chimneys on private homes office buildings apartment houses and industrial plants pours day and night a continual stream of soot— fine particles of unburaed carbon Every speeding automobile leaves bits from "‘its whirring tires to mingle far above the tallest buildings and is with the dust cloud From buildings easily distinguishable from the bine of and streets fine pieces of brick rock the sky and tile chip off continually to float That is exactly the situation in New around in the air Every time a perYork where for the past year scienson takes a step some bit of the tists and engineers have labored with leather from his shoes is left on the the problem of smoke soot and dust sidewalk to be blown about by the They have examined specimens of the wind Cotton and wool fibres are city air and have accuraely counted brushed off his clothes And even hairs and identified the dust particles in and from human bodies these specimens find their way into the air An Interesting experiment was made All large cities in the United States by Dr E E Free consulting engineer have these dust and smoke clouds over of New York who took samples of the them day and night Winter and SumStreets and city’s air at Twenty-thir- d mer Pittsburgh has a very marked Fifth Avenue one of the busiest secsmoke cloud so have New York Chi- tions of New York His method was cago St Louis Boston and Philaingenious He moistened the samples of air by passing them through the delphia chambers of an apparatus lined with hanging conditions wet blotting paper Siphoning the air On a clear day it is only necessary through a small opening he caused to go ten or twenty miles from a large the moisture in the air to condense city and climb a hill or a mountain upon the dust particles and then these There surrounding the city is a graywet particles adhered to a clean glass ish purple cloak softening the view plate and clinging over the town It rises When he placed this glass plate un- - TAKE Xr -- 1E v skin-scal- es - - jj xMf " k 10 If 5 Uni-record- ed - One-IIundr- I Or X ed -- ra s well-found- ed I anti-smo- ke re--strict-ing 'I nt ' ? f: - I''-'- I - s i 'V ! 13 |