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and theology, which were formed in the Middle Ages, and which were characterized by academical disputations and subtilties of reasoning. At Cambridge the philosophy of Descartes was still dominant in the schools. Macaulay.

One versed in the niceties of academical disputation or of school divinity.

An astronomical instrument, the limb of which embraces a small portion only of a circle, used for measuring differences of declination too great for the compass of a micrometer. When it is used for measuring zenith distances of stars, it is called a zenith sector. Dip sector, an instrument used for measuring the dip of…

Chemical analysis.

ng after in time, without asserting or implying causative energy; as, the reactions of chemical agents may be conceived as merely invariable sequences.

s (Arith. & Alg.), those fractions whose denominators are some power of sixty; as, astronomical fractions, because formerly there were no others used in astronomical calculations. -- Sexagesimal, or Sexagenary, arithmetic, the method of computing by the sexagenary scale, or by sixties. -- Sexagesimal scale (Math.), t…

few seconds, a luminous train, - - called also falling star. Shooting stars are small cosmical bodies which encounter the earth in its annual revolution, and which become visible by coming with planetary velocity into the upper regions of the atmosphere. At certain periods, as on the 13th of November and 10th of Augus…

A theory proposed by Ehrlich as a chemical explanation of immunity phenomena. In brief outline it is as follows: Animal cells and bacteria are complex aggregations of molecules, which are themselves complex. Complex molecules react with one another through certain of their side chains, but only when these side chains h…

set the air within the tube in vibration, causing sound. The apparatus is called also chemical harmonicon. -- Singing master, a man who teaches vocal music. -- Singing school, a school in which persons are instructed in singing.

An English rendering of the LAtin Dominus, the academical title of a bachelor of arts; -- formerly colloquially, and sometimes contemptuously, applied to the clergy. Nares. Instead of a faithful and painful teacher, they hire a Sir John, which hath better skill in playing at tables, or in keeping of a garden, than in G…

product of the putrefaction of albuminous matter. It is also found in reduced indigo. Chemically it is methyl indol, C9H9N.

cially fitted. -- Skeleton leaf, a leaf from which the pulpy part has been removed by chemical means, the fibrous part alone remaining. -- Skeleton proof, a proof of a print or engraving, with the inscription outlined in hair strokes only, such proofs being taken before the engraving is finished. -- Skeleton regimen…

To lose cohesion or solidity by a chemical combination with water; to slake; as, lime slacks.

To mix with water, so that a true chemical combination shall take place; to slack; as, to slake lime.

trata have undergone. -- Slaty gneiss (Min.), a variety of gneiss in which the scales of mica or crystals of hornblende, which are usually minute, form thin laminæ, rendering the rock easily cleavable.

l.), any species of ants which is captured and enslaved by another species, especially Formica fusca of Europe and America, which is commonly enslaved by Formica sanguinea. -- Slave catcher, one who attempted to catch and bring back a fugitive slave to his master. -- Slave coast, part of the western coast of Africa t…

A European herbaceous plant (Achillea Ptarmica) allied to the yarrow, having a strong, pungent smell.

mon salt. It is used in making soap, glass, paper, etc., and as alkaline agent in many chemical industries. Called also sal soda, washing soda, or soda. Cf. Sodium bicarbonate, above and Trona. Sodium chloride, common, or table, salt, NaCl. -- Sodium hydroxide, a white opaque brittle solid, NaOH, having a fibrous stru…

Chemical; alchemical. [Obs.]

ect which arose in the days of alchemy, who sought to discover remedies for disease by chemical means. The spagyrists historically preceded the iatrochemists. Encyc. Brit.