Show lie 1 Air IT llrralbe A uen and novel Instrument Ii the lonltcope or dutt letting apparatus Ii r Fa selentrars It la not a complicated tclentllla machine ma-chine being Solely Inlendeil for call mating In an easy and almplo manner oluDO ftlII the amount of i pollution and number of dUI particle In the alinoipliero The action of the Inttruiuent la I bated on certain color phenomena aoclatei wllli u hat I called cloudy condemn tlon of air and which can be produced by I steam jet high or low temperature of the air the Increased number of dust nuclei etc In working the konlacope rlIl rfU 1C rl rfUI the air I drawn Into the aparatua meant of common air pump atilt quickly Passes to tile IU tube whir are tilled with glass at both end When the I tube Unit charged Is I held I Uf dnlI ol II fr ward the llghtrarlou color from pure while to nearly blick bine according lo tie purity i or Impurity of the turn elt S rD ltaVurity r I re jll i pie under test are Indicated L The dut i article also form an Important facto In these tcitu the variation In their number canting the mirror to throw flu the color of the rainbow |