LEPIDOPTERA 



197 



LEVULOSE 



mineral of the mica group; a silicate of iron, 

 &c. , crystallising in hexagonal scales. 

 Lepidoptera, (lep-i-dop'ter-a). [Gk. lepis, scale; 

 pteron, wing.] Butterflies and moths: a 

 primary division of insects, belonging to 

 Haustellata, q.v., have four ample wings, 

 of beautiful patterns, covered with scales, 

 " Born as worms, become crustaceans, and 

 finally insects." 



Lepidopus, (lep-id'o-pus). A large mackerel- 

 like fish. 



Lepidosiren, ( lep-i-do-sl'ren ). [Gk. lepis, 

 scale; seiren, siren.] A fish covered with 

 scales, but otherwise resembling the siren; 

 it has simple filamentary limbs, and con- 

 nects fishes and reptiles, v. Mud-fishes. 

 Lepidosteus, (lep-i-dos'te-us). [Gk. lepis, scale: 

 osteon, bone.]=Bony-Pike: a fish the type of 

 Lepidoganodei. 



Lepidostrobus, (lep-i-dos'tro-bus). [Gk. lepis, 

 scale; strobilas, cone.] Large fossil cones of 

 Lycopods, found in great numbers in coal 

 beds. 



Lepidota, (lep-i-do'ta). [Gk. lepidotos, scaly.] 

 =.Dipnoi, q.v., so named when considered as 

 a reptile. 



Lepidote, (lep'i-dot). [Gk. Lepidotos, scaly.] 

 Covered with lepides or scurf. 

 Lepidotus, ( lep-i-do'tus ). [Gk. lepidotos, 

 scaly.] A ganoid fish, complete remains of 

 which are found in Lias rocks. 

 Leporidae, (lep-or'i-de). [L. lepus, hare; Gk. 

 eidos, form.] Hares and rabbits: animals 

 belonging to Rodentia. 



Leptidse, (lep'ti-de). [Gk. leptos, slender; 

 eidos, form.] Harvest-ticks: small animals 

 belonging to Acari, q.v. 

 Leptocardii, ( lep-to-karUi-i ). [Gk. leptos, 

 slender; kardia, heart.] A sub-division of 

 fishes, formed by Siebold, including the 

 lancelet, having tubular hearts=Pharyn- 

 gobranchii. 



Leptocephalus, (lep-to-sefal-us). [Gk. leptos, 

 slender; kephale, head.] An eel with a 

 small head and tape-like body. 

 Leptodactylus, (lep-to-dak'ti-lus). [Gk. leptos.. 

 slender; daktylos, toe.] Narrow toed birds, 

 known only by their footmarks, v. Lithi 

 chnozoa. 



Leptoglossae, (lep-to-glos'se )." [Gk. leptos 

 slender; glossa, tongue.]=Slender-tonguec 

 lizards, v. Lizards. 



Leptolepis, (lep-tol'e-pis). [Gk. leptos, slender 

 lepis, scale.] A ganoid fish, known only bj 

 fossil scales, found in the Lias. 

 Leptophina, (lep-tof i-na). A serpent belong 



ing to Colubridae. 



Leptosomatum, (lep-to-so'ma-tum). [Gk. leptos 

 slender; sonia, body.] v. Nematoidea. 

 Lepus, (lep'us). [The Latin name.] 1. Th 

 Hare: a small southern constellation. 2 

 Hare, q.v. L. Magellanicus=l$la.ck. rabbi 

 of Falkland I. 



Lesbos, (les-bos). v. Insula. 

 Leslie, (lez'li). [Sir J. Leslie.] L.'s cethrio 

 scope: an instrument intended to measur 

 the degree of radiation of the earth. L 

 differential thermometer, v. Thermometer 

 L. cube: a cubical vessel of tin having th 



sides coated with various substances, so that 

 the radiating and absorbing powers of these 

 substances for heat can be compared. L. 

 photometer: v. Photometer. 

 Lethal actions. [Lethalis, the Latin word.] 

 Those causing death. 

 Letter-lichens=Graphidacege, q.v. 

 Lettuce, (let'tis). [Lactuca, the Latin name. ] 

 =Lactuca: an herb belonging to Asteraceae. 

 Leucaniline, ( lu-kan'MIn ). [Gk. leukos, 

 white; Aniline, q.v.] Ci H 2 iN 3 : a base 

 obtained from rosaniline. 

 Leucic acid, (lu'sik). [Gk. leukos, white. ]= 

 CgHjoOs: a crystalline acid substance ob- 

 tained from Leucine. 



Leucine, (lu'sin). [Gk. leukos, white.]=C 6 Hi 3 

 NO 2 = Leucinide + Water = Amido-caproic 

 acid: a white crystalline substance, found in 

 putrefying cheese. 



Leuciscus, t(lu-sis'kus). Roach, dace, &c.: a 

 fish belonging to Cyprinidse. 

 Leucite, (lu'sit). [Gk. leukos, white.] A 

 mineral substance, chiefly silicate of alumina 

 and potash, crystallising in cubes. 

 Leuckart's classification of animals: 

 Ccelenterata. 

 Echinodermata. 

 Vermes, 

 Arthropoda. 

 Mollusca. 

 Vertebrata. 



Leukhsemic (lu-khe'mik). [Gk. leukos, white; 

 haima, blood. ] Relating to white blood; i. e. , 

 blood having only white corpuscles. 

 Leukol, (lu'kol). [Gk. leukos, white.]=C 9 H 7 N 



=Quinoline, q.v. 



Leukon, (lu'kon). [Gk. leukos, white.]=Si s 

 H4C>5: a white powder=Hydrated oxide of 

 silicon. 



Leucyl, (lu'sil). [Gk. leukos, white; hyle, 

 material. J=C 6 HioO: the radicle of the leucic 

 series. 



Levee, (lev'e). An. American term for an 

 embankment. 



Level. 1. A plane surface, 2. An instru- 

 ment for surveying. Spirit L.: a glass tube 

 nearly filled with spirit; when it is horizontal 

 the bubble of air is at the centre of the top. 

 Water L. ; a tube with two short rectangular 

 terminations, containing water, which stands 

 at the same height in each when the instru- 

 ment is horizontal and the ends vertical. Sea 

 L. : from which the height of land is mea- 

 sured. 



Lever, (le'ver). [L. leva, I raise.] Any rod 

 or bar, having some 

 one fixed point, 

 called the fulcrum, 

 by means of which 

 force can be trans-' 

 ferred ; and by, 



means of which 



three parallel Lever, 



forces balance each other. 

 Levigation, (lev-i-ga'shun). [L. levigo, I grind 



to powder.] Pulverisation to a tine degree. 

 Levitation, (lev-i-ta/shun). [L. levis, light.] 

 The converse of gravitation. 

 Levulose, (le'vu-16s)=Lsevulose, q.v. 



