DAT 



264 



DE A 



the leaves crepitate when burning. 

 Aof j is also the name of a nymph said 

 to have been changed into the laurel. 



DAPHNEPH'OHA. In archceology , a Boeo- 

 tian festival in honour of Apollo, from 

 detfni, the laurel-tree, and $c(ita, to offer, 

 boughs of laurel being offered to the god. 



DAR'APTI. In logic, an arbitrary term 

 expressing the first mood of the third 

 figure of syllogisms, where the first two 

 propositions are universal and affirmative 

 and the last a particular affirmative. 



DA'mc,an old Persian gold coin, said to 

 have been struck by Darius. 



DA'RII. In logic, an arbitrary term for 

 one of the affirmative moods in the first 

 figure of syllogisms. 



DAR'I*EL. In botany, a name common 

 to all the species of the genus Lolium 

 The rye-grass is a well-known species. 



DAR'SIS, excoriation; from Jjjai, to ex- 

 coriate ; the removal of the skin from the 

 subjacent texture, also the morbid abra- 

 sion of the cuticle. 



DAR'TOS, A*fTj, from $(%a, to exco- 

 riate ; a texture approaching to muscle, 

 under the skin of the scrotum, by which 

 the skin of the scrotum is corrugated and 

 relaxed. 



DASH. In music, a mark thus ', de- 

 noting that the notes over which it is 

 placed are to be played in a short, dis- 

 tinct manner. 



DASYC'RCS, an animal of the marsupial 

 order nearly the size of a badger. The 

 Didelphis ursina, Harr., or Ursine opos- 

 sum, of Van Diemen's!Land,isanexample. 

 Name from Taurus and ou^, the tail, 

 which is every where covered with long 

 hairs, not being prehensile. 



DA'TA, plural of datum, given; a ma- 

 thematical term for such things or quan- 

 tities as are given or known, in order 

 thereby to find other things that are 

 unknown. 



DA'TARY, an officer in the chancery of 

 Rome, who affixes the Datum Romee to the 

 Pope's bulls. 



DATE-TREE, the Phoenix dactylifera, a 

 species of palm common in North Africa 

 and West Asia, growing sometimes to the 

 height of 100 feet, and yielding a fruit 

 which forms a principal article of food in 

 those countries. The best dates are 

 brought from Tunis and Persia. 



DA'THOLITE, DAL'OLITE, a mineral, a 

 borosilicate of lime, thus named from 

 SaBciiXoi turbid, because the crystals are 

 not transparent. It is the Dystom-spath 

 of Mohs. 



DA'TISI. In logic, an arbitrary term for 

 an affirmative mode of syllogisms in the 

 third figure. 



DA'TCM-LINE. In surveying, the base 

 or horizontal line of a section (datum, 

 f iv*n),from which all heights and depths 



are calculated, and which is determined 

 by the level, and bears reference to some 

 fixed point in the line. 



DATU'RIA, DATCRI'NE, an alkaline sub- 

 stance obtained from the Datura stramo- 

 nium or common thorn-apple. 



DAU'CUS, the carrot; a genus of umbel- 

 liferous plants. Pentandria Digijnia. 

 Name euro TOM Satuiiv, from its relieving 

 the colic, and discussing flatulencio. 



DAU'PHIX, the title of the heir apparent 

 to the crown of Trance before the revolu- 

 tion. 



DA'VIT. In a ship, a short boom fitted 

 to the fore-channel, to hoist the flukes of 

 the anchor to the bow, which is called 

 fishing the anchor. 



DAY. In astronomy, an apparent day is 

 the interval between two successive tran- 

 sits of the sun's centre over the same me- 

 ridian, which interval is subject to con- 

 tinual variations, owing to the eccentri- 

 city of the earth's orbit and the obliquity 

 of the ecliptic to the equator. A mean 

 day is the interval that would be observed 

 between t\vo successive transits of the 

 sun's centre over the same meridian, if 

 the earth's orbit were circular, and the 

 sun always in the equinoctial. The civil 

 day begins at midnight, the astronomical 

 day at noon. 



DAY or BAY. In architecture, one of the 

 lights or compartments between mullion 

 and mullion in the great windows of the 

 pointed or gothic style of architecture. 



DAY-COAL, a name given by miners to 

 the upper stratum of coal. 



DAY-FLY, the ephemera, Lin., an insect 

 so called from the shortness of its life, 

 which rarely exceeds a day. 



DAY-RULE. In law, an order of court 

 permitting a prisoner in the King's Bench 

 prison, &c., to go for one day beyond the 

 bounds of the prison. 



DAY'S AYoRK. In navigation, the reckon- 

 ing of a ship's course for 24 hours from 

 noon till noon. 



DAYS IN BANK, days of appearance in 

 the Court of Common Bench. 



DAYS OF GRACE. 1. In law, three days 

 granted by the court beyond the time 

 named in the writ, in which the person 

 summoned may appear and answer. 

 2. In commercial affairs, a customary 

 number of days, in Britain three, for the 

 payment of a bill of exchange after the 

 same becomes due. 



DAY-WRIT. See DAT-RULE. 



D.D. (divinitatis doctor), doctor of di- 

 vinity. 



DEACON. 1. In the Church of England, 

 the lowest of the three orders of clergy 

 (deacons, priests, and bishops) in the 

 Church of England. A deacon is not ca- 

 pable of an ecclesiastical promotion, yet 

 he may be chaplain to a family, curate to 

 a beneficed clergyman, or lecturer to 



