GLOSSARY. 



several inches of the top, for the 

 purpose of accumulating electricity. 

 Lias (said to be from Hers or layers, 

 from its occurrence in thin beds). 

 The lowest portion of the oolitic 

 system in geology, composed of 

 clayey limestones, bluish clays, and 

 bituminous and pyritous shales. 

 Liber (Lat. bark). The inner por- 

 tion of the bark of a tree. 

 Libra'tion (Lat. libra, a balance). A 

 state of balancing : in astronomy, 

 a variation in the appearance of 

 portions of the edge of the moon, 

 whereby, under certain circum- 

 stances, they become alternately 

 visible and invisible, as if the mo- 

 tion of the moon were subject to 

 oscillations. 



Li'chen (Gr. \eixw, leichen, a tree- 

 moss). A division of cryptogamic 

 plants covering trees and rocks : a 

 disease of the skin. 

 Lien'tery (Gr. Aetos, leios, smooth ; 

 frrepov, en'teron, an intestine). A 

 disease in which food is discharged 

 undigested from the bowels. 

 Lig'ament (Lat. Ugo, I bind). That 

 which binds together ; a fibrous 

 structure connecting bones. 

 Ligamen'tous (Lat. Ugo, I bind). 

 Having the nature of or acting as a 

 ligament. 



Lig'ature (Lat. Ugo, I bind). A 

 band ; the act of binding ; a cord 

 or string used in surgery for tying 

 blood-vessels. 



Ligneous (Lat. lignum, wood). Con- 

 sisting of or resembling wood. 

 Lignifica'tion (Lat. lignum, wood ; 

 facio, I make. A making wood, 

 or converting into wood. 

 Lignin (Lat. lignum, wood). Vege- 

 table fibre ; the substance which 

 constitutes the essential part of the 

 structure of plants. 

 Lignite (Lat. lignum, wood). Brown 

 coal : a variety of coal of recent 

 formation, in which the woody 

 structure is distinctly apparent. 

 Lig'ulate (Lat. lig'ula t a strap). Like 



a bandage or strap. 

 Lilia'ceous (Lat. lil'ium, a lily). Be- 

 longing to or resembling a lily. 

 Limb (Lat. limbus, an edge or bor- 



der). In astronomy, the border or 

 outer edge of the sun or moon. 

 Limestone. A mineral composed of 

 carbonate of lime, and of which 

 there are several varieties. 

 Linctus (Lat. lingo, I lick). A me- 

 dicine of the consistence of honey 

 or treacle. 



Lin'eal (Lat. lin'ea, a line). Belong- 

 ing to a line or length ; like a line. 



Lin'ear Numbers. In mathematics, 

 numbers which have relation to 

 length only. 



Lin'ear Perspective. That perspec- 

 tive which regards only the posi- 

 tions, forms, and sizes of objects. 



Lin'eate (Lat. lin'ea, a line). Marked 

 longitudinally, with parallel de- 

 pressions. 



Lin'gual (Lat. lingua, the tongue). 

 Belonging to the tongue. 



Linguis'tic (Lat. lingua, tongue or 

 language). Relating to language 

 or the affinities of languages. 



Lin'iment (Lat. lin'io, I anoint). 

 An oily composition for rubbing 

 into external parts of the body. 



Liqua'tion (Lat. liquo, I melt). The 

 art of melting ; the process of 

 melting out from an alloy an easily 

 fusible metal from one less capable 

 of fusion. 



Liquefac'tion(Lat. liquefadio,! make 

 liquid). A melting. 



Liq'uefy (Lat. liquefac'io, I make 

 liquid). To melt or dissolve by 

 heat. 



Liq'uid (Lat. liq'ueo, I melt). A 

 substance of which the component 

 parts are not held together with 

 sufficient force to prevent their 

 separation by their own weight, 

 but have not a mutual repulsion 

 like gases. 



Liquor San'guinis (Lat. the liquor of 

 the blood). The transparent colour- 

 less fluid part of the blood, in 

 which the corpuscles float. 



Lissenceph'ala (Gr. \HTCTOS, lissos, 

 smooth ; ry/ce^aAos, enkeph'alos, 

 the brain). Smooth-brained ani- 

 mals ; a term applied by Owen to 

 a sub-class of mammalia in which 

 the brain is more connected than in 

 lyencephala, but has few or no 

 B 2 



