Show i SCiENCE S in S SHOWS C E SLEUTHS OF FUTURE OUTDO EVEN SHERLOCK d 1 I HOUSES HOUSES' H L bf A 1 3 A J Particles Particle on Clothing May Show Mans Man's Occupation and Home Town Town French French Investigator Paves Way With Microscopic Examination to Convict Slayer 11 oJ 11 d 1 I r J Jt l q L r i- i S Sw y 41 w t 3 With l Microscope Insert The Thc Modern Sleuth EX Examines Suspects Suspect's CI Shows Sir Arthur Conan Doyle Cr Creator ator of Sherlock Holmes Holnes lEN HEN Sherlock Holmes looked w V at a mans man's shoes and saw red redon redI I Y on them tho the great detective of fiction could tell Instantly the locality locality lo 10 lo- lo from which the tho man came Detectives of the future will be abb ably to go Holmes one oue better lJ If It ono one may maJ i judge from some of or the tho scientific atu len ies now note h fn made mado upon unon dust par var ww u n. n titles Physicians have ha long known h that t dust flying lying in the air may cause certain car cn tain tamn ailments and city officials 13 have hare seen to It that childrens children's health on city playgrounds Is 5 protected against duct ft bJ certain laying dust chemicals such as calcium chloride Researches show that a mans man's occupation patton pation may be determined from the dust particles found round on his clothing and aud further In many cases police may learn the name namo of or the city In which ho bo has his home The matter seems simple b i too A steel worker will hays have Sue titre particles of or steel clinging to his clothIng cloth cloth- Ing lub no matter how often he may brush them Such particles might be bo removed removed re re- re moved by brooms vacuum cleaners or even magnets but a n sufficient number remains for determination by a micro micro- I t t. t So likewise might other occupations bo be determined a school from chalk dust a jeweler from gold bold and 1 silver particles a n druggist from chemical chem chern teal ical specks a lumberman from ml ml- auto fragments of at wood and so through h most most of at the scale In the same way a no mans man's city may maybo maybe may bo be determined by analysts analysis of of dust I found round In his Ilis clothing If H it contains much carbon or coal be he probably comes from Scranton if copper copier Iron ran Butte Montana l if bits of minute coral from St. St Augustine Florida whoso whose streets are paved with coral and similarly down the list No Ho one pretends that the list at time la les accurate Rut But some patient In to i 1 In the future may comp compa compile Ili a Do list of or occupations as weli well as of 01 o eWes cities with all the precision that tb tin adv advance nce of science ma may bring to It and then the job of or the 0 detectives detectives- promises to be easier A few feu years ago a French scientist was ryas W able to help belp the police lollee to con v viet t a man suspected s of u certain mur mur- murder der lIer in a n quarry The suspect said he I had been sleeping In the fields Microscopic Micro Micro- examination of or tho the mans man's clothing clothing cloth cloth- ing ravelled the presence presence- of or quarry stone traces The man then confessed f rt |