Show 28 hour mall mail test planned imitchell il itchell field N Y A faie lay teat of the SS bour transcontinental air mail service sen ice which the worn ment proposes to between new york and q san an I 1 froncisco will mill lie le made beginning au ariit ut 21 under tinder orders received thursday from col paul anul henderson of the generals pene rols department at ediht newly constructed airala airplanes nes mith ith powerful motors ard lalev designed d apparatus ap aratus ani equipment lent wll will he flown tor for the first time in the tests according accord inz to lo J 1 lork superintendent ot of tills this tat ioa |