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Show Msblng in Aurora Horrall-. In UM two astronomers, M. Do bit lttno and M. Lenstrom, lnado ciptrl-meats ciptrl-meats in the mountains of Finland which clearly proto tho nurora borealls to bo of ileiltlral orlgliu JI. Do Li ltInosn)si "Wo surrutinde.1 n moun. tain peak with n coll of coppir wile, lulntetl at Intervals w Itli tin nil. Wo next cliurgtHl the wire with a strong tiirri'iit of i lectrlclt) , and every night during our day produced a lvautlful dliphtyof tho aurora, ono of tho main chuructorlstlcs cf this display bi lng a ; tlio wlili whito ll;;ht on tho tin imlnts' of the ttlre, whliti tho spectrcuio analysis j rot td to lio the greenish til low ras known In nothing cbtocxiept theanrori bortalis. Tho main jartof tho auroral display was usually about 150 j ards ubo o tho coppir loll," I'hlla-dilphla I'hlla-dilphla l'ress. |