SCR 



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SCR 



or channel cut in the project in;; angles 

 of the Doric corona. The Greeks called 

 the scotia of the base, trochilon ( r^n^iXo v } . 



SCO'TISTS. An old scholastic sect, the 

 followers of Duns Scotus. 



SCOTODI'NE, Gr. pxeTt'&ivos, from trxvro; , 

 darkness, and dives, giddiness. Giddiness 

 with impaired sight : commonly sympto- 

 matic of disorder of the digestive organs. 



SCOWER'ING POWER. In engineering, the 

 stream of water employed to carry away 

 the shingle from the mouth of a harbour, 

 river, &c. 



SCRATCH'ES. In farriery, a disease in 

 horses, consisting of dry chaps, rifts, or 

 scabs, generated between the heel and 

 pastern joint. 



SCRATCH-WORK. A kind of fresco, with 

 a black ground, covered with a coat of 

 white, which is afterwards scratched with 

 some pointed instrument, so that the 

 black appears through the scratches. 



SCREECH-OWL. A name which has been 

 applied to several species of the owl 

 (strix), on account of the harsh, disagree- 

 able cry which these birds utter at night. 



SCREEDS. A term used, in architecture, 

 for wooden rules used in running mould- 

 ings. 



SCREEN, "Fr.fcran for escran. 1. In archi- 

 tecture, a partition, usually wrought with 

 rich tracery, &c., placed before small 

 chapels and tombs, or behind the high 

 altar. In old parish churches, oaken 

 screens, richly carved, often divide the 

 nave from the chancel. 2. An instru- 

 ment, consisting of three wooden ledges, 



joined in a rectangular frame at the bot- 

 tom, the upper part of which is filled 

 with wire- work : used for sifting sand, 

 clearing corn of dust and dross- grain, &c. 

 SCREW, Dan. skrute, skriie. A cylinder 

 with a spiral channel, cut in such a man- 

 ner that it is equally inclined to the base 

 of the cylinder throughout the whole 

 length. The screw is either male or fe- 

 male, according as the spiral channel is 

 cut apon the external surface of a solid 

 cylinder, or within a cylindrical hole. 

 The female screw is adapted to admit a 

 male screw. When a female screw is 

 Tery short, and made to screw upon a 

 male screw, it is called a nut. The spiral 

 projection appearing as if wound round 



the cjlindcr is called the thread, and th 

 namber of revolutions which the thread 



makes in a given length determines the 

 fineness, and, in conjunction with the dia- 

 meter of the cylinder, the power of the 

 screw. The screw is usually regarded as 

 one of the simple or mechanical powers, 

 but it is in reality nothing more than a 

 beautiful modification of the inclined 

 plane. 



SCREW-NAILS. The name given in 

 Scotland to what are in England termed 

 u-ood-screws. They are a 

 description of screws, used 

 by carpenters and other 

 mechanics, for fastening 

 wood, or wood and metal 

 together Immense quan- 

 tities of the smaller sorts 

 are made of wire. 



SCRIBES. The copyists 

 and interpreters of the law, 

 in Jewish history. 



SCRI'BING. Injoi'nery. fit- 

 ting the edge of a board to 

 any surface, as of the skirt- 

 ing of a room to the floor ; 

 Also the fitting of one piece 

 of wood to another, so that their fibres 

 may be perpendicular to each other, the 

 two edges being cut to the angle to join. 

 SCRIP, Lat. scriptum, from scribo, to 

 write. A certificate in evidence of some 

 property or interest possessed, as in Bank- 

 stock. The term is much used in America. 

 Stockbrokers sell Bank-scrip, railway- 

 scrip, land-scrip, &c., &c., the scrip, duly 

 subscribed, being the evidence on which 

 the parties holding the scrip claim inte- 

 rest in the property. 



SCRIV'EJJERS, Lat., from scribo, I write. 

 Anciently, a respectable class of men in 

 London, who acted as money-brokers. 



SCROF'ULA. A disease named by the 

 Greeks ^oieus, of which Scrofula, a little 

 sow, is a 'Latin translation, implying 

 sifine-evil, or swellings, from a notion that 

 pigs were liable to the disease. It is yul- 



