WEEDS 



344 



WHIN 



JP.=Diotis, g.v. Duck JK.=Lemna, q.v. 



Goat W. JBgopodium, q.v. Guinea-hen W. 



=Petiveria, g.v. Hawk W r .=Hieracium, g.v. 



Hen W.=Guinea-hen W., g.v. Mat W.= 



Nardus, g.v. Mauritius IT.=Rocella fusi- 



formis, g.v. Shore W.=Littorella, g.v. 

 Weeds. Duck W.=Lenniacese, g.v. Sea W. 



= Algae, g.v. 

 Week, (wek). (Weoct, the A.-S. word.] A 



period of time equal to seven civil days. 

 Weeper. W. monkey, v. Cebus. 

 Weeping. W. nonAry=Sajous=Cebus, g.v. 



W. ioioic=Salix Baby- 

 lon ica. 

 Weevil, (we'vil). [Wifel, 



the A.-S. name.] v. 



Weevils. Corn W.= 



Calandragranaria. Hut 



W.=Balaniuus nucum. 



Rice JP.=Silophilusoryza5. Weeptng-wtiiow. 

 Weevils, (we'vilz). [Weevil, g.v.] = Curcu- 



lionidae: insects belonging to Coleoptera= 



Rhynchophora. 

 Weft, (weft). [The A.-S. word.] The cross 



threads in a woven fabric, cf. Warp. 

 Weight, (wat). [A.-S. vegan, to bear.] The 



force of gravitation acting on any given body 



is called its weight. Hundred W.=U2 Ibs. 



avoirdupoise. Unit of W. : in Britain = 



Pound, g.v.: in metric system =Gramme, g.v. 

 Weights and measures, v. Tables. French 



W. = Metric system, g.v. 

 Weir.(wer). [War, the A.-S. word.]=Dam,g.v. 

 Weld, (weld). [Wad, the A.-S. name.]=Re- 



seda luteola. 

 Welding, (wel'ding). [Wtllcn, the German 



word.] Uniting two 



pieces of iron by heat-' 



ing and compression. 

 Weld-worU, (weld'wgrts). 



[Weld and Wort, g.v.] f 



=Resedaceje, g.v. * 



Well. Artesian W., V. .Mode, of welding 



Artesian wells. 

 Wellingtonia, (wel-ling- 



to'ni-a) = Sequoia : a tree resembling the 



pine, found in Mexico, California, &c. W. 



gigantea: discovered in California, 400 feet 



high, 110 feet in circumference. 

 Welsh, (welsh). W. poppy =Meconopsi8. g.v. 

 Wen, (wen). [Wenn, the A.-S, w<mi] A 



small tumour. 

 Wernerian theory, (wgr-nfi'ri-an). pl^emer, 



of Freiburg.] In geology: that all the earth 



was covered by water, and that the rocks 



were precipitated as they are now found. 

 Wernerite, (wr'ner-ft). [Werner, of Frei- 



burg.]=Glaucolite, g.v. 



Wenlock formation, (wenlok). [W. in Shrop- 

 shire.] Beds of limestone, forming a sub-divi- 

 sion of Upper Silurian; also called Ballstone. 

 Whale,(hwal). [Hwal, 



the A.-S. name. ]=. 



Balaena = Cetus: 



a large marine 



animal belonging 



toCetacea. Bottle- 



11, butt-weld, or Jiunplng- 

 weld; 6. Karf-weld. 



rostrata. Pilot 



TF.=Globiocepbalu8 svineval. Sight W. 

 = Baloena mysticetus. Spermaceti W. = 

 Physeter micrpps. W. 6onc=Baleen: the 

 horny plates lining the roof of the mouth 

 in some whales. W. tou*=Cyauus ceti: a 

 small crustacean animal. 

 Wheat, (hwet). [Hwcete. the A.-S. name.]= 

 Triticum: a grass-like plant, the seeds of 

 which are much used for bread; belongs to 

 Hordeaceae. Cow 

 W. =Melampyrum. 

 W. ar = Motacilla 

 oenanthe = Saxico- 

 lacenanthe: a small 

 bird. W. fly=C- 

 cidomyatritici. W. 

 mW<w=Pucciniiei, 

 belong to Coniomy- 

 cetes. 



Wheatstone's bridge. 

 [SirC.Wheatetone.] 

 An apparatus for wTieal-r. 



estimating the conductivity of a given sub- 

 stance for electricity. 



Wheel, (hwel). [Hweol, the A.-S. word.] 

 One of the mechanical powers: a number of 

 levers arranged radiately round a common 

 centre. Faraday's W., V. Faraday's wheel. 

 Face W., v. Face wheel Fly W., one hav- 

 ing a heavy rim, which moderates a fluctuat- 

 ing force. Marlborovgh W. t v. Marl borough 

 wheel. Mitre W., v. Mitre wheels. KnighCt 

 W., v. Knight's wheel. W. animalcules= 

 Rotifera, g.v. W. barometer: a modification 

 of the syphon barometer, in which the rise 

 and fall of the column of mercury turns a 

 wheel, and so indicates upon a dial plate the 

 kind of weather to be expected. W. train: 

 a number of wheels arranged in succession, 

 so that the revolution of one causes the re- 

 volution of all. When the teeth of one 

 wheel is an exact multiple of the teeth in 

 the next, the same teeth come in contact 

 frequently; if an odd tooth, called a hunting 

 cop, be inserted in one wheel, this contact 

 will occur as seldom ax possible. 

 Whelks, (hwelks). (Weolc, the A.-S. name.] 

 =Buccinidaj, g.v. 



Whelp, (hwelp). (Hwelp, the A.-S. name.] 

 The young of a dog, lion, etc. 

 Whetstone, (hwet'ston). Any hard fine-grained 

 stone used for sharpening cutting tools. 

 Whewellite, (hwu'el-lit). (Dr. Whewell.J A 

 mineral, chiefly oxalate of calcium. 

 Whey, (hwa). [Hwaey, the A.-S. word.] A 

 clear straw-coloured liquid: being what is 

 left of milk when the casein and fatty matter 

 are removed. 

 Whiff. (hwif). 

 [Chiciff, the Welsh 

 word.] = Rhom- 

 bus, g.v. 



Whimbrel,(hwim'- 

 brel). A variety 

 of the curlew= 

 Numenius phaeo- 

 pus. 



Whin,(hwin). [W. 

 chwyn, weed.]= WhimbreL 



