LUP 



LYC 



LUNATE (from Una, the moon). I seeds are as large as a pea, and very 



Crescent-shaped 



LUXATION. The period from 

 one new moon to another, the synod- 

 ic revohition. 



LUNGS. The viscus in which air 

 is received, and the blood changed by 

 its presence. The lights, pulmonary 

 apparatus. The substance of the 

 lungs resembles a fine regular sponge ; 

 they are so light as to float on wa- 

 ter; the windpipe communicates with 

 every cell throughout the viscus 

 Common air received is changed in 

 the lungs by an absorption of four 

 per cent, of oxygen and the substitu- 

 tion of an equivalent of carbonic acid, 

 derived from the blood. This o.xy- 

 genation, or aeration of the blood, 

 taking place in the lungs, is one of 

 the great functions on which life de- 

 pends, and cannot be interrupted for 

 a minute without injury or death. 

 By this change, black venous blood 

 is changed into the scarlet arterial 

 fluid, which alone is capable of sus- 

 taining the wants of the body. 



LUNGWORT. Pulmonaria offici- 

 nalis. An exotic, perennial, herba- 

 ceous plant. The whole genus are 

 pretty flowers, and readily propaga- 

 ted by seeds. 



LUNULATE. Crescent-shaped. 

 LUPINE. Lupinus alhus. An an- 

 nual leguminous herb {Fig.), cultiva- 



ted in Italy and France to a limited 

 extent for forage and soiling. The 



nutritious : they were used as food 

 by the Romans. It grows on poor, 

 dry, light soils, but is finest on rich 

 loams ; the seeds are sown as soon 

 as frost is out of the ground, and the 

 plants blossom in .May and June. It 

 is principally raised as a green fallow 

 crop, and jjlOughed in just before the 

 second flowering. Plants for seed 

 must be mowed when moist, as the 

 pods very readily burst. The lupin 

 is considered inferior to other legu- 

 mens as fodder, but is valuable for fal- 

 lows, from growing on very poor lands, 

 which it rapidly enriches. Uor this 

 purpose, there is no doubt the Com- 

 mon wild blue lupin (L. perenms), 

 turned in the first season, would an- 

 swer equally well. 



LUPININE. A gummy matter of 

 lupins. Lupinilc, a bitter substance 

 extracted from the leaves of the lu- 

 pine. 



LUPULINE. The yellow resin- 

 ous dust hanging about the scales of 

 the hop, on which its flavour and val- 

 ue depend. 



LURCHER. A coursing dog, of 

 the greyhound tribe, with a shaggy 

 coat and pricked ears ; it is very 

 swift and sagacious. 



LURID, LURIDUS. A colour of a 

 pale-yellowish purple, frequently as- 

 sociated with poisonous properties in 

 mushrooms and flowers. 



LUSUS NATUR-E. A sport 

 of Nature. Unnatural form in ani- 

 mals. 



LUTE (from lutum, clay). In chem- 

 istry, pasty matter, used to adapt two 

 vessels, or coat their surfaces from 

 fire. Clay, putty, dough, lime, white 

 of eggs, and melted India rubber are 

 variously used. 



LUTEOLINE. A yellow crystal- 

 line colouring matter of weld. 



LUTESCENT (from iutcus, yel- 

 low). Yellowish. 



LUXATION. A dislocation of a 

 joint. 



LYCOPERDON. The genus of 

 pufl!"-ball mushrooms. 



LYCOPODIACE-E. A family of 

 cryptogamic plants, growing in moist 

 places, and resembling ferns, but with 



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