USED IN NATURAL HISTORY. 



41 



sisting of bitumen, carbon, and 

 earthy matter, in various propor- 

 tions. 



COAL MEASURES. The geological 

 formation in which coal is (bund. 

 The coal formation or carbonifer- 

 ous group. 



COA'HCTATE. fr. lat. coarcto, to com- 

 press. Applied to the pupa of 

 an insect, which is inclosed in a 

 case, giving no indication of the 

 parts contained in it. 

 CO'BALT. fr. ger. kobold, a devil. 

 A brittle metal of a reddish-gray 

 colour. Its ores are always asso- 

 ciated with arsenic. 

 COBI'TIS. fr. gr. kobitis, the name 

 of an unknown fish. Generic 

 name of certain fishes. 



CO'BRA CAP'ELLO Portug., cobra, 



snake; capello, a cawl, a hood: 

 hood-snake. Name of a venom- 

 ous serpent. 

 COB-WEBBED. Covered with loose 



hairs, as if with a cob-web. 

 COCCINE'LLA. fr. gr. kokkinos, scar- 

 let. A genus of coleopterous in- 

 sects: commonly called ladybirds. 

 COCCIXELLOIDES. fr. lat. coccinella. 

 cochineal, and gr. eidos, resem- 

 blance. Resembling the cochineal 

 insect. 



Cocci' NEOCS. Scarlet-coloured. 

 COCOO'N fr. gr. kokkos, a berry. 

 The silken case which the larvae 

 of certain insects spin, to cover 

 them during a period of their 

 metamorphosis. 

 COCCO'STEUS Name of a genus of 



fossil fishes, (p. 32, Book viii). 

 COCCOTHRAU'STES. fr. gr. kokkos, a 

 kernel, a grain ; thrauo, I break. 

 The systematic name of the gros- 

 beaks. 



COC'CUM. A grain or seed. 

 Coc'cus. fr.gr. A - oA:A:os, a seed which 

 dyes scarlet. A genus of insects 

 of the order hemiptera. Coccus 

 lacca. A species of cochineal in- 

 sect. 



COCCY'GIAN. Relating to the coccyx, 

 which is an assemblage of small 



bones appended to the sacrum : 

 if prolonged, it would constitute 

 a tail. 



COCH'LEA. Lat. A snail-shell. The 

 name of one of the three cavities 

 which form the labyrinth of the 

 ear. 



CH'LEA;. Shells of one piece; 

 univalves. 



CO'CHLEATE. fr. gr. kochlos, a conch. 

 Shell-shaped; shortly spiral like 

 a snail's shell. 



CCE'CA, or C.KCA. Lat. plur. of ctu- 

 cum. 



CCE'CAL. Belonging to the ccecum. 



Cffi'cuM. fr. lat. caucus, blind. The 

 blind gut, so called from its being 

 perforated or open at one end 

 only. 



COE'LEBS. Lat. Unmarried, solitary, 

 lonely. 



C<ELELMI'WTHA. fr. gr. koilos, hol- 

 low ; elmins, a worm. Intestinal 

 worms which are hollow, and 

 contain an alimentary tube in the 

 cavity of the body. These are 

 the cavitax^ intestinal worms of 

 Cuvier, and the nematoidea of Ru- 

 dolph i. 



CCE'LIAC. The name of one of the 

 arteries of the abdomen. 



COIIE'REXT. In minerals that are 

 brittle, their particles are strongly 

 coherent; in such as are friable 

 they are slightly coherent. 



COKE. The residue of coal, when 

 the volatile matters have been 

 driven off. 



COLEOPHY'LLUM. fr. gr. koleos, a 

 sheath ; phullon, a leaf. Coleop- 

 tile. The sheath within which 

 the young leaves of monocotyle- 

 donous plants are developed. 



COLEO'PTERA. i'r. gr. koleos, sheath ; 

 pteron, wing. Name of an order 

 of insects. 



CoLEop'TERaB. Plur. of coleop'tera. 



COLEOP'TEROUS. Belonging or re- 

 lating to coleop'tera. 



COLKORHI'ZA. Cr.gr. koleos, a sheath; 

 riza, a root. A root sheath in 

 which the radicle is enclosed 



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