...Mechanically he throttled down his oxygen supply, so as to make itlast longer... 
Various 「Astounding Stories, August, 1931」
...Rousing himself, he turned on more oxygen...
Various 「Astounding Stories, August, 1931」
...Po, were soon consumed by the pure oxygen of the highland air...
Richard F. Burton 「Two Trips to Gorilla Land and the Cataracts of the Congo Volume 2」
...Rapid, irregular, or difficult breathing is known as dyspnea, and in allsuch cases the animal has difficulty in obtaining as much oxygen as itrequires...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Haemoglobin: the coloring matter of blood which servesto carry oxygen...
John. B. Smith 「Explanation of Terms Used in Entomology」
...There is so much to see here, while the oxygen is being prepared...
J. Henri Fabre Alexander Teixeira de Mattos 「The Life of the Fly」
... What I am after is oxygen, the gas which I once saw fail so lamentably...
J. Henri Fabre Alexander Teixeira de Mattos 「The Life of the Fly」
...One of my great days was that of my first acquaintance with oxygen...
J. Henri Fabre Alexander Teixeira de Mattos 「The Life of the Fly」
...The blood takes the oxygen out of the air...
Margaret Warner Morley 「The Insect Folk」
...It was afterwards,by the French nomenclaturists, termed oxygenated muriatic acid, conceivingit to be a compound of oxygen and muriatic acid...
Samuel D. Humphrey 「American Handbook of the Daguerrotype」
...Itscolour has the singular property of fluctuating, or of coming and going,under certain conditions; and which it owes to the action and reactionby which it acquires or relinquishes oxygen alternately...
George Field 「Field's Chromatography」
...It has beensupposed that hydrated brown oxide of chromium is not a distinctcompound of chromium and oxygen, but a feeble union of the green oxidewith chromic acid...
George Field 「Field's Chromatography」
...A current releases it; the energy components reunite to give matter again—hydrogen and oxygen gas...
Various 「Astounding Stories of Super-Science January 1931」
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