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[Said to be named after an Italian prince , to whom the discovery of the perfume is attributed.] (See compound.) neroli-camphor, s. Chem.: The camphor of orange-flowers, obtained by adding alcohol of 90 per cent. to neroli-oil. It is insoluble in water and absolute alcohol, soluble in ether, melting at 50°. IMG:content-1647.png:[blocks in formation] ophis a serpent.] Ichthy.: A genus of Syngnathide (q. v.). Body smooth, rounded, few of the ridges distinct, no pectoral fin, caudal absent or rudimentary, tail tapering. The ova are attached to the soft integument of the abdomen of the male. Known species seven, from the European seas and the Atlantic. něrt'-schińsk-ite, s . [From Nertschinsk, Transbaikal, Asiatic Ru ia, where found; suff. -ite Min .: A bluish-white clay, probably the same as LENZINITE OF SEVERITE (q. v.). ( Min .).] tner'-vāte, a. [Mod. Lat. nervatus .] Bot.: Having nerves; nerved (q. v.). ner-va-tion, s. [Eng. nerv(e); -ation.] 1. Ord. Lang.: The arrangement or distribution of the nerves. ch. iv., p. 195. 2834 (3) Force, vigor, spirit, energy. "It cuts the nerves of all endeavor, by rating glory at a bare desire."- South : Sermons, vol. iii., ser. 4. (4) Self-command; steadine or fortitude displayed under dangerous or critical circumstances; a urance. "A stock of good intentions is a very poor set-off for a want of nerve."-Pall Mall Gazette. (5) ( Pl .) The general tone of one's system; constitutional vigor; as, My nerves are quite shattered. H. Technically : IMG:content-1648.png:[merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][ocr errors][merged small][merged small] Origins and Terminations of Nervous Fibers. a, Vesicular substance of the spinal cord; b , b , b, vesicular substance of the brain; e, vesicular substance at the commencement of afferent nerve, which consists of cl, the cerebral division, or sensory nerve pa ing on to the brain, and sl, the spinal division, or excitor nerve, which terminates in the vesicular substance of the spinal cord; on the other side, we have the efferent or motor nerve proceeding to the muscle d, likewise consisting of two divisions-c2, the cerebral portion, proceeding from the brain, and conveying the influence of the will or of instinct; and 82, the spinal division, conveying the reflex power of the spinal cord. ( Carpenter .) also connected with ganglia, which are of a pearly gray tint, and which form the sympathetic system. The capillary ve els of nerves are very minute, and by their transverse communications form an oblong mesh similar to that of the muscular system. (2) Compar .: In the lowest divisions of the anımal kingdom no distinct nerve-system has been traced, but in Radiata, Star-fish, e. g . we find nerves arranged in a circle round the mouth, communicat ing with the ganglia, one of which is found at the base of each ray. The simplest form, however, is found in the Mollusca. Coming to insects, we find they po e nerve-structure producing sensory, reflex, and motor action, and as we rise in the scale, the resemblance to that of man increases. [BRAIN.] There is a strong analogy between nervous action and electricity (q. v.). 2. Arch .: The same as NERVURE, 1. 3. Bot . ( pl .): (1) The strong veins upon leaves or flowers. (2) The ribs or principal veins of a leaf. A term used when other veins similar to the midrib pa from the base to the apex of a leaf.