...I sawKoskoff start my cold apparatus toworking and then he quit, because heran out of helium... 
Various 「Astounding Stories of Super-Science, March 1930」
..."Those tubes sticking from the bottom contain something you arefamiliar with: non-burning and non-explosive helium gas...
Various 「Astounding Stories of Super-Science, June, 1930」
...Noknown terrestrial element gave such aline and he named the new elementwhich he deduced helium, from Helos,the sun...
Various 「Astounding Stories of Super-Science April 1930」
...It was, therefore, supposed to be caused by somehitherto unknown body to which the name of helium, or the sun element,was given...
Robert Stawell Ball 「The Story of the Heavens」
...The cloud-like prominences consistmainly of hydrogen, with helium and calcium, while many metals arepresent in the eruptive discharges...
Robert Stawell Ball 「The Story of the Heavens」
...Here againwe have hydrogen and helium represented by bright lines, while theorigin of the remaining bright lines is doubtful...
Robert Stawell Ball 「The Story of the Heavens」
...Its spectrum shows that it is composedchiefly of hydrogen, calcium and helium, in the state of vapour...
Cecil G. Dolmage 「Astronomy of To-day」
...Three are due to hydrogen;two (discovered by Copeland) are helium lines; others are unknown...
George Forbes 「History of Astronomy」
...Some twenty-five chemical elements have been found in meteorites, including carbon and the ``sun-metal,'' helium...
Garrett Serviss 「Curiosities of the Sky」
...About a dozen less conspicuous lines were graduallyidentified in the spectrum of the prominences and the chromosphere,which appeared also to be caused by this same mysterious helium...
Robert Stawell Ball 「The Story of the Heavens」
...c), the spectra of which are distinguished by the presence of brighthydrogen lines and the bright helium line D3...
Robert Stawell Ball 「The Story of the Heavens」
...To the helium stars (B) belong Rigel, Achernar, β Centauri,Spica, Regulus and β Crucis...
Carl Vilhelm Ludvig Charlier 「Lectures on Stellar Statistics」
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