Show mars tOWELL'S ma THEORY oi Of COMETS COMET'S TAIL TAft FLAG FLAGSTAFF Ariz Juno 11 H. Fol Fol- Fol lowin owing lowing his recent statement that astronomical as as- tro investigations carried on hero had developed h hypotheses antagonistic c to the former theory as to tho composition of comets' comets tails Dr Percival Percival Perci- Perci val Lowell head bead of Lowell observatory va tory tor issued a 3 supplemental bulletin last night in in which ho he says that carbon monoxide monoxide mon mono oxide is one of tho the strongest constituents constituents outs in the tho appendage of Halley's wan wan- derer lie He says s Lowell observatory by I Slipper indicate that the tho stron strongest est and I hitherto unidentified spectral hands bands in tho tail of Halloy Halley's a comet cornel coincide jo with spectral l bands of carbon monoxide found by Fowler for that gas Jas under vcr very low Jow pressure presure o in in t the tho o laboratory tory I Just such a condition f of low Jow pressure pressure pres pres- sure suro must roust exist in a comets comet's tail and therefore it is b by r bands hands that carion car- car hon ion monoxide will wiH reveal its presence This Thin spectrum of tho tiu gas as is shown by gentle electric discharges taking place under inder pressure of about one one-one hundred hun hun- tired dred thousandth of an atmosphere |