Show FLIES FLIP AND DISEASE b EXHAUSTIVE discussion ion of or the AN houna ho fly as u a carrier of disease has boa Just dust been heeD Issued by Professor r Wil William I liam tiam I L Underwood of the Massachusetts set Institute of Technology While the knowledge that flies file do distribute diseases ea has bar Deere been very widely disseminated hated Professor Prof r throws a of new light on oD the subject generally gen rally be he says The house fly crawls erawls over h and lace faces It gets ts Into milk mUk It italka alks alka over Deer sugar and salt over Dior bread I 4 d coke uk often soiling and aUng everything It touches caches with ith Its tt filthy tee foci Plies Fifes are an a menace to health be i I canoe ause cau after walking and aDd feeding secs flU they the can sill and sometimes do y upon their feet and tongues the germs or seeds Meda of diseases like fife dysentery tad and y fever Unfortunately the theo o fly ay does not DOt confine itself to any diet but l ut Js h often attracted from Its Us meal n of firth fUth to food Dori that Is fe 1 Intended for our own use u e and aDd It takes taken I advantage of evert every open unscreened door or window to visit tar oar kitchens and dining rooms roo and aDd may contaminate ate everything it touches toncha tou h with its ta germ feet felt Everyone Efery e Jau hu seen HIM Ake walking over er food 04 f but bat few people know that tha on those six eta small Arnall feet ret and andon andon andon on the flys tongue to there may be thon thoa of the deadly microbes of or disease dis disease ease ta e Professor Underwood has haa Just jnet con COD concluded CODe concluded e an experiment which shows sho how hop rapidly and how easily flies dJs dis disseminate disease germs germ He filled a glass alae with Ith a clear transparent nu stu nutrient trient tillS Jelly and allowed one ordinary house fly which hieb he knew had been around a s spot where w re there were aloe t thou I I sands fonds of bacteria to walk over It Twelve hours later the fhe Jelly telly having hating been kept in a warm place groups of bacteria were easily seen with the th eye During Durin this thin time says Professor Underwood Ula the theme Terms had bad multiplied many manS thousand times Etch mass now represents eata a livins Uv colony or as asIt asIt ast It t were a city dh eU of ier the spot which can be seen Been containing many of them The tracks ot oft of the fly ft aa as a he be walked along can call be De made out and midway between bet the flys tracks in several pieces puces be seen a number of ot small mall rounded spots or colonies colon ea These Thane Tb came from the gums germs larded carried and planted ted by the flys tongue and they show bow the different places where be the insect paused to feed fed as u it t walked ced along TL population Uon of oI one ODe of or o these was wu and were foot J to be pies prest J Jent ent eat in a single spot t Seme day somebody win wait invent lavent a ti fly that will trill exterminate and 4 then we may ma rid ourselves o d af this acknowledged disseminator of sissy many J diseases |