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Show HEIGHT OF ATMOSPHERE Oae Hundred and Thirty-Ons Mile Stays Seientlst, and He Has Measured It. One hundred and thirl) one mil. . l tbe height of the atmosuhen ui issasured by Prof T .1 J Sec. who dsjermlhee the thickness of the air itvelope by noting the difference b Iteen the lime of sunset and the com ltte dlsapiiearame of blue from the y The moment at which the blue ksnges Into black can lie observed qiile easll) with approximate certainly cer-tainly by the naked eye when the air linear, and by trlaonotnctry may to atrsrlslned the dlslnnrn below the laviron of tbe sun at the moment ot (ssiise lly this means may be cal-rtl.ltd cal-rtl.ltd the height of the smallest II Ittninnted partlrlea of oxygen and nl-tsumi nl-tsumi which (lie lo the sky Its I4net (iiit by the reflection of the tBiiller wave lengths of the suits light Tin Instant the change from blue Is black Is iHisslbly a. little dllheiilt f exsii observation, but the method ll not more doubtful than lhat based CI the observation of shooting stars. Tae shooting star method gives a re silt nut Brest ly differing from the vtnislilng blue method The former gives the height ot the atmosphere si 10 miles |