B I L 



[53] 



BIN 



colours, presenting, as they state, 

 an uninterrupted series; others, 

 however, constituting emerald a 

 species, divide it into two sub- 

 species, namely, precious emerald 

 and beryl. Specific gravity from 

 2-65 to 2-75. Hardness = 7'5 to 

 8. 



BE'RYX LEWESIE'NSIS. A fossil dis- 

 covered in the Lewes chalk 

 quarries, of the length of twelve 

 inches, greatly resembling the 

 dory, and by the workmen called 

 the Johnny Dory. This is the 

 most abundant of the Sussex ich- 

 thyolites ; 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 Acanthop- 

 tergii. 



BE'EYX EA'DIANS. A fossil fish from 

 the chalk-marl, of the length of 

 seven inches. This, like the 

 Beryx Lewesiensis, last described, 

 belongs to the family Percoides, 

 order Acanthoptergii. 



BICA'PSULAR. Having two capsules, 

 or seed vessels. 



BICI/PITAL. | (from biceps, Lat.) 



BICI'PETOUS. ) Having two heads. 

 It is a term applied to muscles, 

 which have two distinct origins*. 



BICO'RNUS. (bicornis, Lat.) Having 

 two horns. 



BICU'SPID. (from 'bis and cuspis, a 

 spear, Lat.) Two pointed; two- 

 fanged. 



BI'FID | (from bifidus, Lat. ) Cleft, 



BI'FIDATED j or cloven, into two ; 

 opening with a cleft ; two-cleft, 

 but not very deeply divided. 



BIGE'MINATE. In botany, applied to 

 a compound leaf, having a forked 

 petiole, with several petioles, or 

 leaflets, at the end of each divsion. 



BILA'BIATE. (from bis and Idbium, a 

 lip, Lat.) Two-lipped ; furnished 

 both with an outer and inner lip. 



BI'LDSTEIN. (from bild, shape, and 

 stein, stone, German.) A massive 



mineral, with sometimes an imper- 

 fect slaty structure. It is also 

 called agalmatolite. By M. Brong- 

 niart it has been named steatite 

 pagodite, but it is wanting in 

 magnesia, which is present in all 

 steatites. 



BILO'BED. } (from bis and lobus, Lat.) 



BILO'BATE. ) Divided into two 

 lobes. 



BILO'CULAR. (from bis and loculus, 

 Lat.) Two-celled; divided into 

 two cells. 



BIMA'RGINATE. In conchology, fur- 

 nished with a double margin as far 

 as the lip. 



BIMA'KA. (from bis and manus, 

 Lat.) The first order of the class 

 mammalia ; this order consists of 

 but one species, viz., man. Some 

 naturalists, amongst whom are 

 Ray, Brisson, Pennant, Swainson, 

 Daubenton, &c., &c., would ex- 

 clude man from the pale of the 

 animal kingdom ; others have 

 regarded him as an example of an 

 order per se. From one of the 

 structural peculiarities of the race, 

 the possessing two hands, Cuvier 

 has applied to the order the term 

 Bimana, which is now very com- 

 monly adopted. 



BI'NARY. (binareus, Lat.) Arranged 

 by twos ; containing two units. 



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 indurated, sometimes 

 intermixed with sand resembling 

 sandstone, but generally decom- 

 posing into a clayey soil on 

 exposure to the atmosphere. Bake- 

 well. 



BINO'XIDE. When oxygen combines 

 with another substance in the 

 proportion of two equivalents of 



