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Ammonia is a compound of nitrogen and hydrogen, and is formulated NH , and hence to discover ammonia in the products as mentioned is to prove the prior existence of its nitrogen in the wool, fur, and hair fibres. Action of Acids on Wool, etc. Used in the concentrated state, however, the wool or fur would soon be disintegrated and ruined.
'There are those who hold the opinion that truth is only safe when diluted, about one fifth to four fifths lies, as the oxygen of the air is with its nitrogen. Else it would burn us all up." Byles Gridley colored and started a little. This was one of his own sayings in "Thoughts on the Universe." But the young man quoted it without seeming to suspect its authorship.
The phosphorus uniting with the oxygen fills the jar with white fumes of phosphoric oxide. These soon dissolve in the water, leaving a clear gas above. This is nitrogen. Place a cardboard under the mouth of the jar and turn it right side up, leaving in the water and keeping the top covered.
Suppose, in place of having nitrogen, or nitrogen and oxygen, we had pure oxygen as our atmosphere; what would become of us? You know very well that a piece of iron lit in a jar of oxygen goes on burning to the end. When you see a fire in an iron grate, imagine where the grate would go to if the whole of the atmosphere were oxygen.
The work of the physics labs was operating on the differential ability of various gas molecules to "leak" through plastic membranes under pressure, causing separation of the various molecular constituents of the atmosphere; shunting carbon dioxide off in one direction, and returning oxygen and the inert nitrogen and other gases back to the surrounding atmosphere.
But what was promised us was the development of feeling and perception out of the dead atoms of hydrogen, oxygen, nitrogen, carbon, etc. Even if we could explain life out of the activities of these atoms, which may be possible,—although denied by Haeckel and Tyndall,—still feeling, perception, understanding, all the functions of mind, would remain unexplained.
The agricultural chemist and the microbiologist of the latter end of the nineteenth century have laid considerable stress upon the prospects of using the minute organisms which attach themselves to the roots of some plants particularly those of the leguminaceæ as the means of fixing the nitrogen of the atmosphere, and rendering it available for the plant-food of cereals which are not endowed with the faculty of encouraging those bacteria which fix nitrogen.
Thornton, "you say the cowpea grows when nitrification is most active, and yet you say that it takes less nitrogen from the air than clover. Isn't that somewhat contradictory?" "I think not," said Percy." Let me see. Just what do you understand by nitrification?" "Getting nitrogen from the air, is it not?" "No, no. That explains it. Getting nitrogen from the air is called nitrogen fixation.
A cooling bath of liquid nitrogen therefore circulated over each rod and brought the excess heat to the rear of the big lens, where it, too, could be dumped into the blackness of space beyond.
The protein or nitrogen containing substances of the diet is the group of food substances over which most of the theories are expounded. The hen can make egg fat from corn starch or cabbage leaves because they contain the same elements. She cannot make egg white from starch or fat because the element of nitrogen which is in the egg white is lacking in the starch and fats.
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