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several other rare elements in the mineral gadolinite from Ytterby in Sweden. Symbol Er. Atomic weight 165.9. Its salts are rose-colored and give characteristic spectra. Its sesquioxide is called erbia.

A monatomic, hydrocarbon radical, C2H5 of the paraffin series, forming the essential radical of ethane, and of common alcohol and ether. Ethyl aldehyde. (Chem.) See Aldehyde.

ow out from the mouth or nostrils in the process of respiration; -- opposed to inspire. Anatomy exhibits the lungs in a continual motion of inspiring and expiring air. Harvey. This chafed the boar; his nostrils flames expire. Dryden.

that it was not isolated until 1886. It is a pungent, corrosive, colorless gas. Symbol F. Atomic weight 19.

ccuring unexpectedly, or without any known cause; chance; as, the fortuitous concourse of atoms. It was from causes seemingly fortuitous . . . that all the mighty effects of the Reformation flowed. Robertson. So as to throw a glancing and fortuitous light upon the whole. Hazlitt.

e bond (Chem.), an unsaturated or unemployed unit, or bond, of affinity or valence, of an atom or radical. -- Free-borough men (O.Eng. Law). See Friborg. -- Free chapel (Eccles.), a chapel not subject to the jurisdiction of the ordinary, having been founded by the king or by a subject specially authorized. [Eng.] Bou…

The siliceous shell of a diatom. It is composed of two valves, one overlapping the other, like a pill box and its cover.

One of the imaginary granules or atoms which, according to Darwin's hypothesis of pangenesis, are continually being thrown off from every cell or unit, and circulate freely throughout the system, and when supplied with proper nutriment multiply by self-division and ultimately develop into cells like those from which th…

als, resembles tin, and is in general identical with the predicted ekasilicon. Symbol Ge. Atomic weight 72.3.

Globe-shaped; having the form of a ball or sphere; spherical, or nearly so; as, globular atoms. Milton. Globular chart, a chart of the earth's surface constructed on the principles of the globular projection. -- Globular projection (Map Projection), a perspective projection of the surface of a hemisphere upon a plane…

from its oxide glucina, which was known long before the element was isolated. Symbol Gl. Atomic weight 9.1. Called also beryllium. [Formerly written also glucinium.]

base, combined with various acids, as oleic, margaric, stearic, and palmitic. It is a triatomic alcohol, and hence is also called glycerol. See Note under Gelatin.

One of a class of carbohydrates having from three to nine atoms of carbon in the molecules and having the constitution either of an aldehyde alcohol or of a ketone alcohol. Most glycoses have hydrogen and oxygen present in the proportion to form water, while the number of carbon atoms is usually equal to the number of…

ive agents, and therefore well suited for its use in coin and jewelry. Symbol Au (Aurum). Atomic weight 196.7.

ve skeleton and powerful muscles, which give it enormous strength. In some respects its anatomy, more than that of any other ape, except the chimpanzee, resembles that of man.

Hecatombæon (July-Aug.). 2. Metageitnion (Aug.-Sept.). 3. Boëdromion (Sept.-Oct.). 4. Pyanepsion (Oct.-Nov.). 5. Mæmacterion (Nov.-Dec.). 6. Poseideon (Dec.-Jan.). 7. Gamelion (Jan.-Feb.). 8. Anthesterion (Feb.-Mar.). 9. Elaphebolion (Mar.-Apr.). 10. Munychion (Apr.-May). 11. Thargelion (May-June). 12. Scirophorion (Ju…

A New Zealand lizard, which, in anatomical character, differs widely from all other existing lizards. It is the only living representative of the order Rhynchocephala, of which many Mesozoic fossil species are known; -- called also Sphenodon, and Tuatera.

ation. Animal heat, Blood heat, Capacity for heat, etc. See under Animal, Blood, etc. -- Atomic heat (Chem.), the product obtained by multiplying the atomic weight of any element by its specific heat. The atomic heat of all solid elements is nearly a constant, the mean value being 6.4. -- Dynamical theory of heat, th…

d as an important ingredient of kerosene, and so called because each molecule has sixteen atoms of carbon; -- called also hexadecane.

A hydrocarbon, C11H24, of the paraffin series; -- so called because it has eleven atoms of carbon in each molecule. Called also endecane, undecane.