BALLOON TUBES.
FOR COLLECTION AND ANALYSIS OF AIR. NO TRACE OF CYANOGEN IN TAIL. By T«lejraph-Pres» Assoclatlon-OoDirUht. London, May 15. When Halley's Comet is near the earth an international commission of aeronautics will send up balloons, each with a Deborfs glass tube, which opens at a given height, admits the air, and then closes hermetically. The contents will afterwards bo analysed. Observations at Madrid show that the tail of the comet is 43,500,000 miles in length. There is no trace of cyanogen (a colourless poisonous gas, said to have been indicated in some earlier comets by the . spectroscope).
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https://paperspast.natlib.govt.nz/newspapers/DOM19100517.2.66.4
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Dominion, Volume 3, Issue 819, 17 May 1910, Page 6
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98BALLOON TUBES. Dominion, Volume 3, Issue 819, 17 May 1910, Page 6
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