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Belonging to the reptiles. Reptilian age (Geol.), that part of geological time comprising the Triassic, Jurassic, and Cretaceous periods, and distinguished as that era in which the class of reptiles attained its highest expansion; -- called also the Secondary or Mezozoic age.

eptiles having biconcave vertebræ, immovable quadrate bones, and many other peculiar osteological characters. Hatteria is the only living genus, but numerous fossil genera are known, some of which are among the earliest of reptiles. See Hatteria. Called also Rhynchocephalia.

. Science is . . . a complement of cognitions, having, in point of form, the character of logical perfection, and in point of matter, the character of real truth. Sir W. Hamilton.

or with itself; not deviation from the ordinary standard by which the conduct is guided; logically consistent throughout; having each part consistent with the rest.

A philosophical or theological opinion; a dogma; as, Summary of the Sentences; Book of the Sentences.

Having or observing logical sequence; logically consistent and rigorous; consecutive in development or transition of thought. The scheme of pantheistic omniscience so prevalent among the sequacious thinkers of the day. Sir W. Hamilton. Milton was not an extensive or discursive thinker, as Shakespeare was; for the motio…

That which follows as the logical result of reasoning; inference; conclusion; suggestion. Sequelæ, or thoughts suggested by the preceding aphorisms. Coleridge.

artment) organized to collect from the whole country simultaneous raports of local meteorological conditions, upon comparison of which at the central office, predictions concerning the weather are telegraphed to various sections, where they are made known by signals publicly displayed. -- Signal station, the place whe…

A native or inhabitant of Slavonia; ethnologically, a Slav.

A doctor of the Sorbonne, or theological college, in the University of Paris, founded by Robert de Sorbon, a. d. 1252. It was suppressed in the Revolution of 1789.

An unmanned balloon sent aloft for meteorological or aëronautic purposes.

effective power in an institution or enactment; security; validity; legal or moral force; logical conclusiveness; as, the strength of social or legal obligations; the strength of law; the strength of public opinion; strength of evidence; strength of argument.

A genealogical register of a particular breed or stud of horses, esp. thoroughbreds.

A loin of beef, or the upper part of the loin. See Sirloin, the more usual, but not etymologically preferable, orthography.

The regular logical form of every argument, consisting of three propositions, of which the first two are called the premises, and the last, the conclusion. The conclusion necessarily follows from the premises; so that, if these are true, the conclusion must be true, and the argument amounts to demonstration;…

sition or influence; hence, similarity of condition, fortune, etc., as prefigured by astrological calculation. [R.] Motley.

The concurrence of events in time; synchronism. [R.] Geological contemporaneity is the same as chronological synchrony. Huxley.

lage of objects arranged in regular subordination, or after some distinct method, usually logical or scientific; a complete whole of objects related by some common law, principle, or end; a complete exhibition of essential principles or facts, arranged in a rational dependence or connection; a regular union of principl…

Tautological.

One who uses tautological words or phrases.