Nitrogen-hydrogen compound

Usage examples of ammonia.

Besides the glands, both surfaces of the leaves and the pedicels of the tentacles bear numerous minute papillae, which absorb carbonate of ammonia, an infusion of raw meat, metallic salts, and probably many other substances, but the absorption of matter by these papillae never induces inflection.

As such minute doses of the salts of ammonia affect the leaves, we may feel almost sure that Drosera absorbs and profits by the amount, though small, which is present in rainwater, in the same manner as other plants absorb these same salts by their roots.

Manner of performing the experiments--Action of distilled water in comparison with the solutions--Carbonate of ammonia, absorbed by the roots--The vapour absorbed by the glands--Drops on the disc--Minute drops applied to separate glands--Leaves immersed in weak solutions--Minuteness of the doses which induce aggregation of the protoplasm--Nitrate of ammonia, analogous experiments with--Phosphate of ammonia, analogous experiments with--Other salts of ammonia--Summary and concluding remarks on the action of salts of ammonia.

We may infer that the carbonate of ammonia is absorbed by the glands, not only from its action being so rapid, but from its effect being somewhat different from that of other salts.

As, however, the aggregation caused by this salt travels down the tentacles at a quicker rate than when insoluble particles are placed on the glands, it is probable that ammonia in some form is absorbed not only by the glands, but passes down the tentacles.

Filter off the precipitate and wash with hot water containing a little sodium acetate, dissolve it off the filter with hot dilute hydrochloric acid, add ammonia in excess, and pass sulphuretted hydrogen for five minutes.

If the lead is present as sulphate in sodic acetate solution, it is well to render it distinctly alkaline with ammonia.

Boil off the gas, add ammonia until a precipitate is formed, and then acidify somewhat strongly with acetic acid.

To separate these, ammonia is added till the solution is alkaline, and then acetic acid in slight excess.

After precipitating as ammonic-magnesic phosphate with sodium phosphate, and well washing with ammonia, it is dissolved in dilute hydrochloric acid, neutralised with ammonia, and sodic acetate and acetic acid are added in the usual quantity.

On dissolving in hydrochloric acid, neutralising with ammonia, adding 5 c.

Glutamic acid, without which ammonia accumulates in the brain and kills, dribbled along the floor while they glared, and D-ribose, and D-2-deoxyribose, adenine, guanine, uracil, cytosine, thymine and 5-methyl cytosine without which no thing higher than a trilobite can pass on its shape and meaning to its next generation.

Inhalations of chloride of ammonia, administered with a steam-atomizer, Fig.

If there be great prostration, with cold extremities, the carbonate of ammonia should be administered, in doses of from one to two grains, every second hour, in gum arabic mucilage.

A similar result followed from an immersion of only 15 minutes in a solution of one part of carbonate of ammonia to 218 of water, and the adjoining cells of the tentacles, on which the papillae were seated, now likewise contained aggregated masses of protoplasm.