Mankind couldn't possibly take it pure and unmixed, just as we can't breathe pure oxygen; we require an addition of four times its bulk in nitrogen.

| 85.97 | 86.31 +-+-+- Percentage of total oxygen reduced.

They are alike in chemical composition, consisting of carbon and hydrogen, with a little oxygen and no nitrogen.

[Coll.], gasohol, alcohol, ethanol, methanol, fuel oil, kerosene, jet fuel, heating oil, number 2 oil, number 4 oil, naphtha; rocket fuel, high specific impulse fuel, liquid hydrogen, liquid oxygen, lox.

Thus the blood that leaves the lungs conveys an excess of the poisonous carbon dioxid, and a deficiency of the needful oxygen.

This ozonized oxygen, when brought into mixture with many nitrogenized bodies, forms with them nitrous acids, completely destroying their former condition and composition; hence, in the atmosphere, this part of the oxygen becomes a purifier of the whole mass, from which it removes putrescent exhalations, miasmatic vapors, and the effluvia from every source of sea or land.

Art supplied the spiritual oxygen, without which the life of the Renaissance must have been atrophied.

They do not find sufficient oxygen to purify or decarbonize their blood through the night; they consequently are not refreshed, nor invigorated and fully prepared for the labors of the following day.

At this moment the oxidizing apparatus are put in communication with an induction bobbin that is interposed in the circuit of a dynamo, while through the tube, n, there is made to enter a mixture of equal parts (in volume) of sulphurous acid, oxygen, and air.

They retain the hydrogen and the carbon, exhale the superfluous oxygen, and absorb little or no nitrogen.

The force of the blast as the compressed oxygen and acetylene were expelled carried a fine spray and the disintegrated metal visibly before it.

So you see, Dick True, as it is a poor doctor who is afraid of his own medicine, I am going to prescribe it first of all for ourselves, and we will go where unadulterated oxygen may be had for the smelling, and we can draw in sunshine with every breath.

(A catalyst is an intermediary like the trace of water, which will bring about an explosion between dry oxygen and hydrogen that without it have stayed inert with the strongest currents of electricity.)

Did it contain the oxygen essential to Tellurian lungs?