Moreover, in the fresh-water rotten-stone beds of Bilin, Ehrenberg had traced out the metamorphosis, effected apparently by the action of percolating water, of the primitively loose and friable deposit of organized particles, in which the silex exists in the hydrated or soluble condition.

I was just talking with my secretary about that hydrate clause.

" The secretary opened the note to read: "Where in thunder does that hydrate come fromSouth America or Russia?

The object of adding this acid is to dissolve the hydrate of oxide of zinc formed during the electrolysis and deposited in a whitish stratum upon the surface of the copper.

When heated with strong potassium hydrate, it yields methylamine.

When distilled with potassium hydrate, quinine yields quinoline and its homologues.

When cinchonine is treated with potassium hydrate, it is decomposed into quinoline and a solid body, which on further treatment yields a liquid base, C{7}H{9}N, which is probably lutidine.

When cinchonine is distilled with solid potassium hydrate, it yields pyrrol and bases of both the pyridine and quinoline series.

Cinchonidine, when heated with potassium hydrate, yields quinoline also, and with nitric acid the same products as cinchonine.

When distilled with potassium hydrate, quinoline is formed.

When distilled with potassium hydrate it yields quinoline, lutidine, and two isomeric collidines.

Serious results have followed the eating of not only oatmeal or shell fish, but salmon and mutton; hydrate (misreported nitrate) of tin being gratuitously suggested as being contained in the salmon in one case.

Between nine and ten o'clock the same evening Kent was walking the floor of his room, trying vainly to persuade himself that virtue was its own reward, and wondering if a small dose of chloral hydrate would be defensible under the cruel necessity for sleep.

A vessel filled with water has an inverted vessel within it; a pipe is led to the balloon from the latter and a tube of india-rubber is attached which contains calcium hydrate.

By tipping the tube the amount of calcium hydrate required can be poured into the generator.

At the positive pole, hypochlorite of iron seems to be formed at first, but this is quickly changed into a protochloride, and as at the negative pole an alkaline reaction takes place, the iron salt is precipitated in the form of the ferrous hydrated oxide, together with the organic matters in suspension and solution.

The active agent, hydrated ferrous oxide, is prepared within the sewage itself as a flocculent precipitate.

Hydrated ferrous oxide is a deodorizer.

"In producing this result two agencies are at work, there is the action of electrolysis and the formation of a hydrated oxide of iron.

He succeeded in isolating a substance corresponding in its chemical composition to grape sugar, and also a carbo-hydrate differing considerably from grape sugar, and turning the plane of polarization to the left.

3. Des terrains tres-recens, composes d'argile sablonneuse et ferrugineuse, avec geodes de fer hydrate, et du bois fossile, a differens etats.

The first step in the conversion of flour into bread is to incorporate with it a given amount of fluid, by which each atom of flour is surrounded with a thin film of moisture, in order to hydrate the starch, to dissolve the sugar and albumen, and to develop the adhesiveness of the gluten, thus binding the whole into one coherent mass termed dough, a word from a verb meaning to wet or moisten.

BUNSEN, ROBERT WILLIAM, a distinguished German chemist, born at Göttingen, settled as professor of Chemistry at Heidelberg; invented the charcoal pile, the magnesian light, and the burner called after him; discovered the antidote to arsenic, with hydrate of iron and the SPECTRUM ANALYSIS (q. v.); b. 1811.

CHLORAL, a colourless narcotic liquid, obtained at first by the action of chlorine on alcohol; treated with water it produces chloral hydrate.

sea-foam), a fine white clay, a hydrate-silicate of magnesia, supposed, as found on the sea-shore in some places, to have been sea-foam petrified.