22 



GLOSSARY. 



name). Inalgebra, applied to a term 

 consisting of two quantities joined 

 by the sign + plus or minus. 



Binox'alate (Lat. bis, twice; oxalic 

 acid). An oxalate containing two 

 equivalents of acid to one of base. 



Binox'ide (Lat. bis, twice ; oxygen). 

 A term applied in chemistry to the 

 second degree of oxidation of a 

 metal or other substance. 



Bipartite (Lat. bis, twice ; pars, a 

 part). Having two corresponding 

 parts. 



Biped (Lat. bis, twice ; pes, a foot). 

 Having two feet. 



Bipen'nate (Lat. bis, twice ; penna, a 

 wing). Having two wings ; or 

 wing-like leaves on each side of a 

 stem. 



Bipin'nate (Lat. bis, twice ; pinnate). 

 Doubly pinnate ; applied to com- 

 pound leaves, of which the leaflets 

 are pinnate. 



Biquad'rate (Lat. bis, twice ; quadra, 

 a square). In mathematics, the 

 fourth power of a number, or the 

 square multiplied by the square. 



Bira'mous (Lat. bis, twice ; ramus, a 

 branch). Having two branches. 



Bisect' (Lat. bis, twice ; seco, I cut). 

 To divide into two equal parts. 



Bise'rial (Lat. bis, twice ; series, an 

 order or row). Arranged into two 

 series or courses. 



Biser'rate (Lat. bis, twice ; serra, a 

 saw). Doubly serrated ; applied 

 to the edges of leaves which are 

 doubly marked like the teeth of a 

 saw. 



BisuTcate (Lat. bis, twice ; sulcus, a 

 furrow). Cleft in two ; having 

 cloven feet. 



Bisul'phate(Lat. bis, twice ; sulphuric 

 acid). A sulphate containing two 

 equivalents of sulphuric acid to one 

 of base. 



Biter'nate (Lat. bis, twice; terni, 

 three and three). In botany, ap- 

 plied to compound leaves, which 

 form three leaflets on each second- 

 ary vein. 



Bituber'culate (Lat. bis, twice; tuber 1 - 

 culum, a tubercle). Having two 

 tubercles. 



Bituminiferous (Lat. bitu'men, min- 



eral pitch or tar ; fcro, I produce). 

 Yielding bitumen. 



Bitu'minous. Having the property 

 of or containing bitumen. 



Bivalve (Lat. bis, twice ; valves, 

 folding-doors). Having a shell of 

 two valves, closing with a hinge. 



Black flux. A mixture of carbonate 

 of potash and charcoal, used in 

 chemical operations. 



Blaste'ma (Or. pXatrTavca, blas'tano, 

 I bud forth). Material exuded 

 from the blood through the minute 

 vessels or capillaries, and capable 

 of organisation. 



Blas'toderm (Gr. fiXac-ros, blastos, a 

 bud; Sep/j.0., derma, a skin). The 

 germinal disc which forms on the 

 ovum or egg in the early stage of 

 incubation. 



Blende (German blenden, to dazzle). 

 A term applied to minerals having 

 a peculiar lustre or glimmer. 



Blow-pipe. An instrument by which 

 a current of air is driven on the 

 flame of a lamp or candle, thereby 

 producing an increased heat. 



Boiling-point. The temperature at 

 which a substance boils ; it varies 

 greatly for different substances, 

 but is constant for the same, under 

 the same circumstances. 



Bole (Gr. j8Aos, bolos, a clod). A 

 friable clayey slate or earth, usually 

 coloured with oxide of iron. 



Borate (Borax). A salt formed of 

 boracic acid with a base. 



Bo'real (Gr. /3opeas, boreas, the north 

 wind). Belonging to the north or 

 north wind ; applied to the pole of 

 a magnet which points to the north. 



Borboryg'mus (Gr. Pop&opvyij.os, bor- 

 borug'mos). The sound caused by 

 wind within the intestines. 



Bot'any (Gr. fioravri, bot'ane, a plant). 

 The science which describes vege- 

 tables. Descriptive botany teaches 

 the description and naming of 

 plants ; geographical botany, the 

 manner in which plants are dis- 

 tributed on the earth ; palce* 

 ontological botany comprehends the 

 study of fossil plants ; physiological 

 botany describes the functions of 

 plants and their organs j structural 



