Show SCIENCE SHOWS SLEUTHS OF FUTURE MAY OUTDO EVEN SHERLOCK HOLMES particles on CIo clothing thino may show mans occupation and home hoine town french investigator paves way with microscopic examination to convict slayer at A f N f rl IS 4 V the modern sleuth examines suspects clothing with microscope insert shows sir arthur conan doyle creator of sherlock holmes HEN sherlock holmes looked won WHEN at a mans oboes and saw red on them the great detective ot of fiction could tell instantly the lo 10 bality from which the man came detectives 0 of the future will be able to go holmes one better it if one way may judge irom from some of the scientific stud les now being made upon dust par tides physicians have long known that dust flying in the air may cause tain ailments and city officials have hare seen to it that childrens health on elev playgrounds Is protected against dast by certain dust ia laying ying chemicals 0 ese searches arches show that a mans mccu pation may be determined atom lorn the dust particles lound found on his bis clothing and further in many cases police may learn the name 0 of o the city in which ho he has his bis home the matter seems simple enough too A steel worker will have HUP fine particles of 0 steel clinging to his cloth ing no matter how hov often he may brush bresli them such particles pa nicles might inight be re moved by brooms vacuum cleaners or even magnets but a sufficient number remains tor for determination by a micro scope so likewise might other oilier occupations be determined a school iron from chalk dust a jeweler from gold and silver particles a druggist dru eest from rom chemical specks a lumberman from minute fragments of wood and so through most ot of the scale in the same way a mans city may be determined by analysis of dust found in his bis clothing it it contains much carbon or coal he probably comes from scranton it copper from butte butle montana it if bits of minute coral from st augustine florida whose streets are paved with coral and similarly down the list no one pretends that the list at time Is accurate but some patient in tore in the future may compile a list ot of occupations as weli wel as of cities with all the precision that the advance of science may bring to li it and then the job ot of the detectives detective promises to be easier A few years ago a french scientist was able to help the police to con vict a man suspected of certain mur der in a quarry the suspect said he be nad dad been sleeping in the fields micro cople s examination ot of the nans mans cloth ing revealed the presence of 0 quarry stone traces the man then confessed |