. The Saturday evening post. INC. NATIONAL BRANDS NEW YORK CITY. 34 THE SATURDAY EVENING POST November 13,1920 (Continued from Page 32) have manufactured a few such tubes in odd shapes foradvertising purposes. Here in the United States severalexperimenters are now trying to bring this type of electriclamp up to a point of production for use in the homes of therich or in other places where such an unusual but expensivelight would be appreciated. Krypton and xenon are present in such small quantitiesin the atmosphere that experimenters have had very littleof these gases to work with, and, as a c


. The Saturday evening post. INC. NATIONAL BRANDS NEW YORK CITY. 34 THE SATURDAY EVENING POST November 13,1920 (Continued from Page 32) have manufactured a few such tubes in odd shapes foradvertising purposes. Here in the United States severalexperimenters are now trying to bring this type of electriclamp up to a point of production for use in the homes of therich or in other places where such an unusual but expensivelight would be appreciated. Krypton and xenon are present in such small quantitiesin the atmosphere that experimenters have had very littleof these gases to work with, and, as a consequence, no oneappears to have found any commercial uses for , krypton is credited with performing one remark-able function in the atmosphere. Scientists tell us that ifit were not for this gas there could be no aurora borealis toawe the people of the earth with its weird beauty. Thepresence of any of the noble gases in the air is detected bythe spectroscope, which displays the color lines of everykind of matter. The aurora borealis has a number


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