GLOSS ARV. 251 



laochlmencd lines, lines passing through points on the earth at 



which the mean temperature of the winter is equal. 

 Intertropical, between the tropics. 

 Jf/ nis fatuus, Jack 0' Lantern. 

 Inverted, turned upside down. 

 Igneous, rocks, such as have been melted by fire or volcanic 



heat 



Infusoria, animalcules too minute to be seen by the naked eye. 

 Interlace, to tangle or lace together. 

 Inflorescence, the manner in which flowers are connected with 



the plants. 



Indigenous, native of, or growing wild in a country. 

 Joint, the parting lines in rocks, often at right angles with the 



planes of stratification. 

 Kaolin, a species of potter's clay. 

 Lignite, wood converted into a kind of coal. 

 Lava, the melted stone which is thrown out of volcanoes. 

 Lichens, cryptogamic plants, of a crusty texture, growing on 



rocks and the trunks and branches of trees. 

 Lenticular, having the form of a lens. 

 Longevity, length of life. 

 Laticiferous, the system of vessels in the bark of plants, which 



circulates their fluids. 

 Latex, the fluid formed from the sap, and which nourishes all 



parts of plants. 



Lanceolate,- in the form of a lancet 



Lyrate, pinnatified wiih a. large roundish leaflet at the end. 

 Linear, long and narrow with parallel sides, as in the leaves of 



the grasses. 



Leguminous, having legumes or pods, as the bean and pea. 

 Liber, the inner bark of plants. 

 Lamina, layers, thin plates or leaves. 

 Longitude, the distance of places on the globe in an east and 



west direction. 



