DIU 



Dreams ought to be soon forgotten, as 

 they are in fact; because the state of the 

 brain suffers great changes in passing 

 from sleep to vigilance. The wilclness 

 and inconsistency of our dreams render 

 them still more liable to be forgotten. It 

 is said, that a man may remember his 

 dreams best by continuing in the same 

 posture in which he dreamt, which, if 

 true, would be a remarkable confirma- 

 tion of the doctrine of vibrations; since 

 those which take place in the medullary 

 substance of the brain, would be least 

 disturbed and obliterated by this means. 

 Sthly. The dreams which are presented 

 in the first part of the night are, for the 

 most part, much more confused, irregu- 

 lar, and difficult to be remembered, than 

 those which we dream towards the morn- 

 ing ; and these last are often rational to a 

 considerable degree, and regulated ac- 

 cording to the usual course of our associ- 

 ations. For the brain begins then to ap- 

 proach to the state of vigilance, or that 

 in which the usual associations were form- 

 ed and cemented. However, association 

 has some power even in wild and incon- 

 sistent dreams. 



DREIN, in the military art, a trench 

 made to draw the water out of a moat, 

 which is afterwards filled with hurdles 

 and earth, or with fascines, or bundles of 

 rushes and planks, to facilitate the pas- 

 sage over the mud. 



DRESSING of ores, the breaking and 

 powdering them in the stampingmill, and 

 afterwards washing them in a wooden 

 trough. 



DRESSING, in surgery, the treatment of 

 a wound or any disordered part. The ap- 

 paratus of dressing consists of dossils, 

 tents, plasters, compresses, bandages, 

 bands, ligatures, and strings. 



Drift, in naval language, the angle 

 which the line of a ship's motion makes 

 with the nearest meridian, when she 

 drives with her side to the wind and 

 waves, and is not governed by the power 

 of the helm. It also implies the distance 

 which the ship drives on that line. A ship's 

 way is only called drift in a storm, and 

 then when it blows so vehemently as to 

 prevent her from carrying any sail, or at 

 least restrain her to such a portion of 

 sail as may be necessary to keep her suffi- 

 ciently inclined to one side, that she may 

 not be dismasted by her violent labour- 

 ingproducedby the turbulence of the sea. 



DRILL, in mechanics, a small instru- 

 ment for making such holes as punches 

 \vill not conveniently serve for. Drills 



DUO 



ised 



nto 



lur 



1 she 



** 



ai-e of various sizes, and are chiefly us 

 by smiths and turners. 



D it ILL, or DRILL-BOX, a name given 

 an instrument for sowing land in the new 

 method of horse-hoeing husbandry. It 

 plants the corn in rows, makes the chan- 

 nels, sows the seeds in them, and covers 

 them with earth when sown ; and all this 

 at the same time, and with great expedi- 

 tion. The principal parts are, the seed- 

 box, the hopper, the plough and its har- 

 row, of all which, the* seed-box is the 

 chief. It measures, or rather numbers, 

 out the seeds which it receives from the 

 hopper, and is for this purpose as an arti- 

 ficial hand ; but it delivers out the seed 

 much more equally than can be done by 

 a natural hand. See AGRICULTURE. 



DRINK, a part of our natural food in 

 liquid form, serving to dilute and moiste 

 the dry meat. See DIETETICS. 



DRIVING, in the sea-language, is said 

 of a ship when an anchor being let fall 

 will not hold her fast, nor prevent her 

 sailing away with the tide or wind. The 

 best help in this case is to let fall more 

 anchors, or to veer out more cable; for 

 the more cable she has out, the safer 

 rides. When a ship is a-hull or a-1 

 they say she drives to leeward. 



DRONE, in the history of insects, the 

 male of the common honey bee, larger 

 than the working bees ; it is so called 

 from its idleness, as never going abroad 

 to collect either honey or wax. See APIS. 



DRONE, in music, the largest tube of 

 the bag-pipe ; the office of which is to 

 emit one continued deep note, as an ac- 

 companying bass to the air or tune play- 

 ed on the smaller pipes. 



DROPS, in meteorology, small sphe- 

 rical bodies which the particles of fluids 

 spontaneously form themselves into, when 

 let fall from any height. This spherical 

 figure the Newtonian philosophers de- 

 monstrate to be the effect of corpuscular 

 attraction ; for, considering that the 

 tractive force of one single particle of 

 fluid is equally exerted to an equal 

 tance, it must follow that other fluid pi 

 tides are on every side drawn to it, ai 

 will therefore take their places at 

 equal distance from it, and consequei 

 form a round superficies. 



DROPS, in medicine, a liquid reme< 

 the dose of which is estimated by a 

 tain number of drops. 



DROPSY, in medicine, an unnatui 

 collection of watery humours in any part 

 of the body. See MEDICINE. 



DROSERA, in botany, a genus of the 

 Pentandria Pentagynia class and order. 



