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te. Relapsing fever (Med.), an acute, epidemic, contagious fever, which prevails also endemically in Ireland, Russia, and some other regions. It is marked by one or two remissions of the fever, by articular and muscular pains, and by the presence, during the paroxism of spiral bacterium (Spirochæte) in the blood. It is…

ther by acting machanically in preventing the color, etc., from reaching the cloth, or chemically in changing the color so as to render it incapable of fixing itself in the fibers.. The pastes prepared for this purpose are called resist pastes. F. C. Calvert.

different uses, as a bulb of glass with a curved beak to enter a receiver for general chemical operations, or a cylinder or semicylinder of cast iron for the manufacture of gas in gas works. Tubulated retort (Chem.), a retort having a tubulure for the introduction or removal of the substances which are to be acted upo…

A translucent mineral of a green color and micaceous structure, belonging to the chlorite group; a hydrous silicate of alumina, magnesia, and iron; -- called also clinochlore.

ubly periodic. -- Periodic law (Chem.), the generalization that the properties of the chemical elements are periodic functions of their atomic wieghts. "In other words, if the elements are grouped in the order of their atomic weights, it will be found that nearly the same properties recur periodically throughout the e…

A green micaceous mineral occurring in minute scales. It is essentially a silicate of aluminia and potash containing vanadium.

nic substances by which they lose the cohesion of their parts and pass through certain chemical changes, giving off usually in some stages of the process more or less offensive odors; to become decomposed by a natural process; to putrefy; to decay. Fixed like a plant on his peculiar spot, To draw nutrition, propagate,…

Pertaining to, or designating, a set of astronomical tables computed by Kepler, and founded on the observations of Tycho Brahe; - - so named from Rudolph II., emperor of Germany.

seed of a tree of the Philippines (Strychnos Ignatia), of properties similar to the nux vomica. -- Saint Jame's shell (Zoöl.), a pecten (Vola Jacobæus) worn by piligrims to the Holy Land. See Illust. under Scallop. -- Saint Jame's wort (Bot.), a kind of ragwort (Senecio Jacobæa). -- Saint John's bread. (Bot.) See Ca…

native. -- Sal Jovis Etym: [NL.] (Old Chem.), salt tin, or stannic chloride; -- the alchemical name of tin being Jove. -- Sal Martis Etym: [NL.] (Old Chem.), green vitriol, or ferrous sulphate; -- the alchemical name of iron being. Mars. -- Sal microcosmicum Etym: [NL.] (Old Chem.) See Microcosmic salt, under Microc…

f sorrel, below. -- Salt of Saturn (Old Chem.), sugar of lead; lead acetate; -- the alchemical of lead being Saturn. -- Salt of Seignette. Same as Rochelle salt. -- Salt of soda (Old Chem.), sodium carbonate. -- Salt of sorrel (Old Chem.), acid potassium oxalate, or potassium quadroxalate, used as a solvent for ink…

A wide-mouthed bottle with glass stopper for holding chemicals, especially crystallized salts.

ce, formed in the decomposition of creatin (one of the constituents of muscle tissue). Chemically, it is methyl glycocoll.

A Chaldean astronomical period or cycle, the length of which has been variously estimated from 3,600 years to 3,600 days, or a little short of 10 years. Brande & C.

To satisfy the affinity of; to cause to become inert by chemical combination with all that it can hold; as, to saturate phosphorus with chlorine.

two large kinds of workers besides the ordinary ones, and for the immense size of its formicaries. The sauba ant cuts off leaves of plants and carries them into its subterranean nests, and thus often does great damage by defoliating trees and cultivated plants.

To avoid unnecessary expense or expenditure; to prevent waste; to be economical. Brass ordnance saveth in the quantity of the material. Bacon.

Avoiding unnecessary expense or waste; frugal; not lavish or wasteful; economical; as, a saving cook.

A chemical earth, the oxide of scandium.

liation) and hence admitting of ready division into slabs or slates. The common kinds are mica schist, and hornblendic schist, consisting chiefly of quartz with mica or hornblende and often feldspar.