alum (alum)

t. [ or IMG:content-0573.png:[graphic] of the genera Aluco and Phodilus. See Strigida. Aluconinæ (al"ū-kō-ni'nē), n . pl . [NL., Alu- of alum-stone (which see). co(n-) +-inæ.] The Aluconida , as a subfamily alumin, alumine (al'u-min), n. Same as alu- IMG:content-0574.png:[blocks in formation] shaped gla es or earthen pots, used in sublimation, resembling somewhat the ancient alembic, and open at both ends so that they can be fitted together in a series. The name has also been given to any prolonged chimney or tube of gla or earthenware consisting of more than one piece. widely diffused over the globe in the shape of clay, loam, adamantine spar, the ruby, and sapphire, is alumina nearly pure and crystallized. In these forms alumina is, next to the diamond, the hardest substance known. Its great value in the arts depends on its affinity for vegetable coloring matters and animal fiber. It forms the base of the lakes in dyeing, and acts also as a mordant. United with silica it is extensively used in the manufacture of all kinds of pottery and porcelain-ware, crucibles, mortar, and cements. aluminate (a-lū'mi-nāt), v. t.; pret. and pp. alumina ted, ppr. alumina ting. [ aludel-furnace (al'u-del-fernās), n. A fur- nace for the reduction of mercurial ores. It con- sists of a cylindrical shaft divided by an arch into two chambers, the lower serving as a furnace and the upper receiving the ore. The mercurial vapors from the latter pa through rows of aludels, in which it is condensed and whence it is delivered into a reservoir. alula (al'ū-lä), n.; pl. alulæ (-lē). [NL., dim. of ala , wing: see aisle .] 1 In ornith ., the winglet, bastard wing, or ala spuria of a bird; the packet of small feathers which aluminic (al-ū-min'ik), a. [ aluminium + -ic . ] upon Relating to or containing aluminium. IMG:content-0575.png:[blocks in formation] wing. The feathers are rather stiff, resembling primaries to some extent, but always smaller, and contribute to the smooth ium. the so-called aluminiferous (a-lu-mi-nif'e-rus), a . [L. alu- thumb of men ( alumin- ), alum, + ferre = E. bear1 .] Con- bird's taining or yielding alum, alumina, or alumin- [ men ( alumin- ), alum, + -form is , form a , form.] Having the form of alum, alumina, or alumin- ium. the French philosopher Comte to denote the benevolent instincts and emotions in general, or action prompted by them: the opposite of egoism. If we define altruism as being all action which, in the normal course of things, benefits others instead of benefiting self, then, from the dawn of life, altruism has been no le e ential than egoism. H. Spencer, Data of Ethics, § 75. ne and evenne border of the wing. 2. In entom.: (a) The small membranous appendage or scale situated at the base of each wing of many dipterous insects, above the halteres or poisers. (b) A similar appendage beneath each elytron of some water-beetles. Also called alulet and cue iller on. In certain water beetles (Dytiscide) a pair of alulæ , or winglets, are developed at the inner angle of the elytra. Encyc. Brit., VI. 127. alular (al'ū-lär), a. Of or pertaining to an