USED IN NATURAL HISTORY. 



lour, contained in the latici'ferous 

 vessels, (p. 58, Book vii). 



LA'TTTCDE. fr. lat. latiludo, breadth. 

 The extent of the earth reckoned 

 from the equator to either pole. 

 Latitude is measured by degrees 

 and minutes. The latitude of 

 any place is its distance from the 

 equator towards either pole. 



LAT'TICED. Having longitudinal 



lines or furrows crossed by others. 



LAURI'NEJE. fr. lat. laurus, a laurel 

 or bay tree. Name of a family 

 of plants. 



LAVA.-ln geology, substances which 

 flow in a melted state from a vol- 

 cano. Lavas vary in consistence 

 and texture. 



LAX Limber, flaccid. 



LAYERING. The process of propa- 

 gating young plants from a pa- 

 rent stalk, by laying down a 

 branch, and then separating it 

 from its parent. 



LEAF. In botany, the digestive or- 

 gan of a plant: an expansion of 

 the bark, at the base of a leaf- 

 bud, prior to which it is deve- 

 loped. 



LEAF-BUD. That part of the plant 

 by which the individual is pro- 

 pagated. 



LEAFLETS. Little leaves. The small 

 parts of compound leaves. 



LEAF-STALK. Petiole. That part of 

 a leaf which connects the blade 

 with the stem. 



LECTULA'RIUS. Lat. Belonging or 

 relating to a bed. 



LKGU'MK. fr. lat. legu'men, all kinds 

 of beans, peas, &c. A form of fruit. 



LKGU'MEN. fr. lat. lego, to gather. 

 A legume: a one -celled, two- 

 valved, superior fruit, dehiscent 

 by a suture along its face, and its 

 back, and bearing seeds on each 

 margin of its ventral suture. 



LEGCMI:NO'S.B, fr. lat. legumen, a 

 bean. A family of plants. 



LEGU'MIWOCS. Belonging or relating 

 to the leguminoseae. 



LEMM'US. Lat. A lemming. 



3D2 



LE'MTJR. A name given to certain 

 quadrumanous mammals. 



LENGTH OF SHELLS. Spiral shells 

 are measured from the tip of tho 

 spire to the base, and therefore 

 perpendicularly. The length of 

 bivalves is taken horizontally. 



LK'NTA. Lat. Slow, heavy, stupid. 



LENTICELLJE. Lenticular glands, or 

 brown oval spots found on the 

 bark of many plants. 



LENTI'CULAR. > fr. lat. knticula, a lit- 



LEN'TIFOIIM. \ tie lens, a lentil. 

 Shaped like a lens. 



LEO. Lat. A lion. 



LEONI'NA. Lat. Belonging or re- 

 lating to a lion. 



LEPA'NTHIUM. A petaloid nectary 



LEPIUODE'NPRON. fr.gr. lepis, scale; 

 dendron, a tree. A genus of fossil 

 plants, having a scaly bark. 



LEPIDODE'NDRA. Lat. plur. of lepi 

 dodendron. 



LEPIDO'PTERA. fr. gr. lepis, a scale ; 

 pteron, a wing. An order of insects 

 characterized by scaly wings. 



LEP'ROUS. Covered with spots or 

 scales. 



LEPORI'NA. Lat. Belonging or re- 

 lating to a hare. 



LEPTE'NA. A synonym of the genus 

 productus. (p. 30, Book viii). 



LEP'TUS. fr. gr. leptos, slender. A 

 genus of arachnidans. 



LEPUS. Lat. A hare. 



LEUCI'SCCS. Lat. Generic name of 

 the roach. 



LEucocE'pHALUs.-fr.gr.fettfcos, white; 

 kephale, head. White-headed. 

 Specific name of the bald eagle. 



LEVA'TOR. A muscle whose office it 

 is to raise or elevate certain parts. 



LEYMERII. -Lat. of Leymerie. 



LIAS. Provincial corruption of the 

 word layers. In geology, a divi- 

 sion of the secondary formation. 

 It is also called the liassic, Juras- 

 sic, and oolitic system of rocks, 

 (p. 54, Book viii). 



LIBEL'LULA. Lat. A dragon-fly. A 

 genus of insects. 



LI'BER. Lat. Bark. Endophlr.um 



