B E R 



B I P 



shell of which was without chambers. 

 Montfort placed the bellerophon among 

 chambered shells ; De Blainville assigned 

 their position next to Bulla. 



BE'RYL. (beryllus, Lat. beryl, Fr.) A 

 crystallised compound of the earth glu- 

 cina with silica, alumina, lime, and oxide 

 of iron. The beryl is a gem, or precious 

 stone, of the genus emerald, but less va- 

 luable than the emerald. It differs from 

 the precious emerald in not possessing any 

 of the oxide of chrome, from the presence 

 of which the emerald obtains its splen- 

 did green colour. The aqua-marine is a 

 variety of the beryl, having a more 

 transparent texture. The beryl is of a 

 greyish-green colour, blue, yellow, and 

 sometimes nearly white ; occasionally 

 different colours appear in the same stone. 

 Beryl is found in many parts of the world, 

 but the finest specimens are brought from 

 Siberia. Vauquelin first discovered the 

 earth glucina from analyzing the beryl. 



BE'RYX LEWESIE'NSIS. A fossil fish dis- 

 covered in the Lewes chalk quarries, of 

 the length of twelve inches, greatly re- 

 sembling the dory, and, by the workmen, 

 called the Johnny Dory. This is the most 

 abundant of the Sussex ichthyolites ; its 

 scales are very frequent in all the pits of 

 the South Downs, as well as in those of 

 Surrey and Kent. Mantell. Cuvier 

 places the beryx in the family Percoides, 

 order Acanthopterygii. 



BE'RYX RA'DIANS. A fossil fish from the 

 chalk-marl, of the length of seven inches. 

 This, like the Beryx Lewesiensis, last de- 

 scribed, belongs to the family Percoides, 

 order Acanthopterygii. 



BIA'NGULAR. ) (from bis and angulus, 



BIA'NGULOUS. $ Lat.) Having two angles. 



BIA'NGULATED. Having two angles or 

 corners. 



BICA'PSULAR. Having two capsules, or 

 seed-vessels. 



BICI'PITAL. } (from biceps, Lat.) Having 



BICI'PETOUS. $ two heads. It is a term 

 applied to muscles, which have two dis- 

 tinct origins. 



BICO'RNOUS. (bicornis, Lat.) Having two 

 horns. 



BICO'RPORAL. Having two bodies. 



BICC'SPID. (from bis and cu?pis, a spear, 

 Lat. ) Two-pointed ; two-fanged. 



BI'DENTATED. teeth ' 



BIE'NNIAL. (biennis, Lat.) Enduring 



throughout two years and then perishing ; 



plants which do not bear flowers and seed 



till the second year, and then die. 

 BI'FID. } (from bifidis, Lat.) Cleft, 



BI'FIDATED. $ or cloven, into two ; open- 



ing with a cleft ; two-cleft, but not very 



deeply divided. 



BIFA'RIOUS. (bifarius, Lat.) Parting in 

 opposite directions. 



BI'FURCATED. (from bis and/wrea, Lat.) 

 Divided into two heads or branches ; 

 forked. 



BIFURCATION Division into two parts, 

 as in a fork. 



BIGE'MINATE. In botany, applied to a 

 compound leaf, having a forked petiole, 

 with several petioles, or leaflets, at the 

 end of each division. 



BILA'BIATE. (from bis and labium, a lip, 

 Lat.) Two-lipped ; furnished both with 

 an outer and inner lip. 



BILA'TERAL. (from bis and latus, side, 

 Lat.) Two-sided; having two sides. 



BI'LDSTEIN. (from bild, shape, and stein, 

 stone, German.) A massive mineral with, 

 sometimes, an imperfect slaty structure. 

 It is also called agalmatolite. By M. 

 Brongniart it has been named steatite 

 pagodite, but it is wanting in magnesia, 

 which is present in all steatites. 



BILL. The beak of a bird. 



BI'LOBED. \ (from bis and lobus, Lat.) 



BILO'BATE. S Divided into two lobes. 



BILO'CULAR. (from bis and loculus, Lat.) 

 Two-celled ; divided into two cells. 



BIMA'RGINATE. In conchology, furnished 

 with a double margin as far as the 

 lip. 



BI'MANOUS. (from bis and manus, Lat.) 

 Two-handed ; having two hands. 



BI'NARY. (binarius, Lat.) Arranged by 

 twos. 



BI'NATE. (from binus, Lat.) Two and 

 two ; by couples ; growing in pairs ; a 

 fingered leaf of two leaflets, inserted at 

 the same point, precisely on the summit 

 of the petiole. 



BIND. Called also clunch ; a name given 

 to the soil on which the coal strata rest. 

 An argillaceous shale, more or less indu- 

 rated, sometimes coloured black by bitu- 

 men, and sometimes intermixed with 

 sand resembling sandstone, but generally 

 decomposing into a clayey soil on expo- 

 sure to the atmosphere. Bakewell. 



BINO'CULAR. (from binus and oculus, Lat ) 

 Having two eyes. 



BI'PAROUS. (from bis and pario, Lat.) 

 Bringing forth two at one birth. 



BIPARTITE, (from bis and partitus, Lat.) 

 Having two correspondent parts ; an epi- 

 thet for the corolla, leaf, and other parts 

 of plants, when divided into two cor- 

 respondent parts at the base. 



BI'PED. (from bipes, Lat. bipede, Fr. 

 bipede, che ha due piedi, It.) Any animal 

 having two feet only. 



BI'PEDAL. (bipedal, Fr.) Having two 

 feet. 



BIPE'NNATE. ) (bipennis, Lat.) Having 



BIPE'NNATED. $ two wings. 



BIPE'TALOUS. (from bis, Lat. and 



