L I N 



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L I T 



line descending from the upper edges to 

 the table, will be the line of dip, and their 

 direction lengthwise will be their line of 

 bearing. 



LINES OF GROWTH. In conchology, those 

 concentric lines or markings in a shell, 

 formed by successive layers of shelly 

 matter, which mark its growth. The 

 external layer is always the most recent. 



LI'NEAR. (linearis, Lat.) 



1. In entomology, a figure having the 

 lateral margins very close together, and 

 parallel throughout. 



2. In conchology, composed of lines ; 

 being marked with lines. 



3. In botany, a term applied to narrow 

 leaves, when they are of equal breadth 

 throughout, the two edges being straight, 

 and equi-distant from each other. 



LI'NEATE. (lineatus, Lat.) Marked with 

 lines ; marked with longitudinal depres- 

 sions. 



LI'NGUAFORM. ) (from lingua, the tongue, 



LI'NGUIFORM. ) and forma, shape, Lat.) 

 Tongue-shaped. 



LI'NGUAL. (linguale, Fr. from lingua, a 

 tongue, Lat.) Pertaining to the tongue, 

 as the lingual arteries, lingual veins, &c. 



LI'NGULA. A genus of bivalves, shells 

 composed of two valves, nearly equal, 

 truncated anteriorly ; the hinge having 

 no teeth : the beak of the valves pointed, 

 and united to a tendinous tube, serving 

 for a ligament of attachment. . This is 

 the only bivalve shell which is pedun- 

 culated. The recent lingula inhabits the 

 Indian ocean ; it has thin, horny, and 

 greenish valves. Linnaeus, who had seen 

 but one valve of this shell, named it 

 Patella unguis. Parkinson says it has 

 not been found fossil, but Mr. Sowerby 

 mentions that some have been found 

 fossil in sandy indurated marl, in Dur- 

 ham limestone, and in alluvium of Suf- 

 folk. 



LI'NGULATE. (lingulatus,'Lat.') Tongue- 

 shaped ; an epithet for leaves shaped like 

 a tongue. 



LIP. (lippe, Germ.) In conchology, the 

 outer edge of the aperture of univales. 



LI'PPED. Having lips. 



LIQ,UEFA'CTION. (iiquefactio, a melting, 

 Lat. liquefaction, Fr. liquefazione, It.) 

 The act of melting ; the state of being 

 melted. This word is sometimes used 

 synonymously with fusion, sometimes with 

 deliquescence, and at others with solu- 

 tion. 



LIQ,UEFI'ABLE. That is capable of being 

 changed from a solid to a fluid state. 



LI'CIUEFY. (from liquefio, Lat. liquffier, 

 Fr. liquefare, It.) To dissolve ; to melt ; 

 to convert from a solid to a fluid state. 



LIQUE'SCENCY. (liquescentia,ljii.t.) Apt- 

 ness to melt, 



LI'RICONITE. (from Xeipog, pale, and 

 Kovia, sand or dust, Gr.) A name given 

 to arseniate of copper. It is of a blue 

 or green colour, and occurs in copper 

 mines. 



LI'THIA. A new alkaline substance, disco- 

 vered by M. Arfwedson, a Swedish chemist, 

 in 1818, in the mineral called Petalite. 



LI'THIUM. The metallic base of Lithia, 

 discovered by Sir H. Davy. 



LI'THOCARP. (from XiOoQ, a stone, and 

 KapTrog, fruit, Gr.) Petrified, or fossil 

 fruit. 



LITHO'DENDRON. (from Xi9og, a stone, 

 and Stvdpov, a tree, Gr.) A name given 

 to coral, from its likeness to petrified 

 wood. 



LITHO'DOMUS. (from \iOoc, a stone, and 

 (tejuw, to build, Gr.) A transverse, elon- 

 gated, cylindrical, marine equivalve. Af- 

 fixed at first by byssus to rocks, which it 

 subsequently penetrates, and remains ever 

 after in the cavity. It is a littoral shell, 

 found at depths varying to ten fathoms. 

 A mollusc, which forms holes in stones 

 and solid rocks, which it effects, not me- 

 chanically, by boring, but chemically, by 

 dissolving the rock. Generally used plu- 

 rally, lithodomi. 



LITHO'DOMOUS. Belonging to the genus 

 Lithodomus. 



LITHO'GENOUS. (from \iQog, stone, and 

 yevvdn), to produce, Gr.) Belonging to 

 the class of animals which form coral. 



LITHOI'DAL. (from XiOoQ, a stone, and 

 tlSog, resemblance, Gr.) Resembling 

 stone ; of a stony structure. 



LITHOLO'GICAL. (from \i9og, and Xoyi/e6f , 

 Gr.) Relating to the science of stones ; 

 in geology, a term used to express the 

 stony character or structure of a mineral 

 mass. 



LITHO'LOGY. (from Xi0o, a stone, and 

 Xoyof, discourse, Gr. litholooie, Fr. ) 

 That branch of natural history which 

 treats of stones. 



LITHO'LOGIST. (from \i9og and Xoyiort- 

 Kog, Gr. litholooue, Fr.) One skilled in 

 that branch of natural history which treats 

 of stones. 



LI'THOMARGE. Called also stone-marrow; 

 a variety of talc. It has commonly a 

 fine grain, of a white, gray, yellow, red, 

 or brown colour, these colours being 

 sometimes disposed in spots, clouds, 

 veins, or stripes ; unctuous or greasy to 

 the touch, and adheres to the tongue. In 

 water it falls to powder, and does not 

 form a paste. Specific gravity 2'4. It is 

 infusible before the blow-pipe. It differs 

 from potters' clay in not forming a paste 

 with water. It occurs massive, dissemi- 

 nated, globular, and in irregular lumps, in 

 gneiss, porphyry, serpentine, &c. 



LITHO'PHAGI. (from XiOo and fyayliv, to 



