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Show II cttif Itili. Th icalea of flihesaro Try beautiful thlnftoeiKiulntaler(wooplcaJly Tak thotoof AgoldllOi for 1 1 am pi. Th brilliant golden or silvery hue of threo fhlir are produced by a soft layer of pigment (proa 1 oter tholr Inner surface an J een through the trumluecnt sub itance of the scale. On carefully de-tiehlng de-tiehlng a scale ono ne on the under side a layer of gleaming substance en illy removed, silver or golden, according ac-cording to the hue of tho (Ml If a small portion of this substance Is taken up on the end of a fine needloond spread on a glow slide under tho micro-scope micro-scope It Is nm to corulit of two distinct dis-tinct materials, ono giving (he color and tho other the tuetalllo I inter When tlui greatly umitnllled the former of theo two unbalances Is ren to lo a layer of looo cell, of on onuigo color Iu the gold nnd whltUh In tho ill vr fifties. If a drop of water bo then added and tho solution gently agitated with the needle point tho luaM Is nun to bo full of an Inllnito number of flat crystal, oblong pritms, with angular ends. Uy reflected light they IUh hke plate of poll thed it ft I Hut what appears most singular Is that each crystal lperntually tlbrat Ing and fluttering ni It AlUr. although It Is really duo to a slight motion of tho water In which they float Owing to this Irregular uion me tit each crystal Is momentarily brlghtmlng or waning, Hashing out cr retiring Into darkticM, thus producing a positively inngVtt effect To thU i roirty, rcitunbly, Is to 1m attributed the pearly (lay of light which marks tho Hi lug fWlict. Interview In Washington Htar |