BIOGENESIS 



51 



BISTTLPHATE 



Biogenesis, ( bi-o-jen'es-is ). [G. bios, life; 

 genesis, birth. ]=Biogeny: the origin of life 

 from life only : opposed to Abiogenesis, q.v. 



Biology, (bl-ol'o-ji). [Gk. bios, life; logos, 

 discourse.] The science of Jiving beings, in- 

 cluding all vegetables and animals, divided 

 into Morphology and Embryology. 



Bioplasm, (bi'o-plazm). [Gk. bios, life; plasma, 

 formed matter. ]= Protoplasm, q.v. 



Biot's apparatus for measuring the power of 

 rotatory polarization in liquids. 



Biotin, (bi'o-tin). [M. Biot.]=Anorthite, q.v. 



Biotite, (bi'o-tit). [M. Biot.]=Magnesia mica: 

 a mineral of the mica group, found iu recent 

 volcanic rocks, a silicate of alumina, mag- 

 nesia, &c. 



Bipes, (bi'pez). [L. bis, two ; pes, foot.] 1. 

 A reptile with two pelvic limbs or legs, but 

 no thoracic limbs or arms: belongs to Lacer- 

 tilia. 2. = Man, sometimes called Bipes 

 implumis. to distinguish him from birds. 



Biquadratic, (bi-kwad-rat'ik). [L. bis, twice; 

 quadratus, square.] The fourth power of a 

 numerical quantity. 



Birch, (birch). [The A.-S. name.] =s Betula, 

 q.v. A tree belonging to Betulacese, the tim- 

 ber of which is valuable for the strength and 

 fineness of grain. 



Birch-worts, (birch'wurtz). [Birch and wort, 

 q. v. ] = Betulacese, q. v. Tree* resembling tha 

 birch. 



Bird, (bird). [Birds, q.v.] Used as an adjec- 

 tive. B. c/im - 2/=Cerasus padus. B. pepper 

 = Capsicum baccatum. B. lime = A fer- 

 mented gluey compound, chiefly of holly- 

 bark. B. Tice=Mallophaga: wingless parasitic 

 insects, chiefly found on birds. Bird's-eye: 

 LAN. American stratum, corresponding to 

 the Caradoc of Britain, containing many 

 Phytopsis cellulosa, which look like eyes; 2.= 

 Primula farinosa. B. of prey Accipitres= 

 Raptores, q.v. B. &iZ=Trigonella oruitho- 

 podioides. B. foot: l.=Ornithopus; 2.= 

 Euphorbia ornithopus. B. on#e=Ornitho- 

 glossum. B. foot-trefoil= Lotus. 



Birds, (birdz). [Brid, the A.-S. name.] Ver- 

 tebrate animals adapted for flying by having 

 the fore limbs modified into wings, covered 

 with feathers; connected with reptiles by 

 the Archseopteryx. Classified by Latham, 

 Blumenbach, Cuvier, Temminck, Vigors, 

 M'Leay, Latrielle, Swainson, &c. 



Bird's nest. The popular name for Mono- 

 tropa, q.v. ; also for Neottia, q.v. 



Birds of Paradise, Birds belongi: 

 vidae, the males of which 

 are remarkable for the 

 beauty of their plumage: 

 found only in New Guinea. 



Birgus, ( bir'gus ) = Tree- 

 crab: a crustacean animal, 

 belonging to Anomura, 

 said to be able to climb 

 trees. 



Birthwort, (birth'wurt) = 

 Aristolochia, q.v. 



Biscuit porcelain. Fine 

 earthenware in a porous condition, in Avhich 

 any required pattern or design can be printed 



jing to Cor- 



Bird of Paradise. 



on it in colours, the colouring matter being 

 readily absorbed. 



Bisethyl, (bis-eth'il). [Bismuth and Ethyl, 

 q.v.]=C^ll^3i : an organic radicle; a com- 

 pound of bismuth and ethyl; also called bis- 

 muthethyl. 



Bisextile. v. Bissextile. 



Bisexual, (bi-seks'u-al). [L. bis, twice; Sexual, 

 q. v.] = Hermaphrodite: having both sexes 

 xinited. 



Bishop's weed=^Egopodium, q.v. 



B ismethyl, (bis-meth'il). [Bismuth and Ethyl, 

 <Z.v.]=Bistriethyl, q.v. 



Bismite, (bis'mit). [Bismuth, q.v.] A mineral, 

 chiefly oxide of bismuth. 



Bismuth, (bis'muth). [ Wismuth, the German 

 name.]=Bi / ": a brittle metal found in quartz 

 rock, which expands in cooling, and is dia- 

 magnetic: one of the ingredients of fusible 

 metal. B. glance = Native B. -sulphide = 

 BioSs. B. group of minerals, includes bis- 

 muth, bismuthinite, &c. ; soft, heavy, fusible, 

 brittle minerals. Native B. crystallises in 

 hexagons, and is usually mixed with small 

 quantities of other metals. 



Bismuthethyl, ( bis-muth-eth'il ). [Bismuth 

 and Ethyl, g.v.]=Bisethyl, q.v. 



Bismuthic acid, ( bis'muth-ik ). [Bismuth, 

 tf.v.]=Pentoxide of bismuth, BioO 5 . 



Bismuthinite, ( bis-mu-thi'nit ). " [Bismuth, 

 q.v.] = Bismuthine: a mineral, chiefly sul- 

 phide of bismuth, BiaSs, crystallising in 

 rhombs; belongs to the bismuth group; also 

 called Bismuth glance. 



Bismuthite, (bis'mu-thit). [Bismuth, q.v.] 

 A sulphuretted ore of bismuth. 



Bismuthyl, (bis'mu-thfl). [Bismuth, q.v.]= 

 BioOo: an oxide of bismuth. 



Bismutite, (bis'mu-tit). [Bismuth, q.v.] A. 

 mineral, chiefly carbonate of bismuth. 



Bison, ( bi'zon ). [Tho Latin name.] = Biso 

 Eurppaeus: a large 

 ox-like animal, be- 

 longing to Bovidaj. 



1. European B. 

 Aurocb : very rare. 



2. American B. = 

 Buffalo. 

 Jissextile 



seks'til ). " [L. 'bis, 

 twice ;sextus, sixth.] American Bison. 



=Leap year: every fourth year, when the 

 year is 366 days, February having 29 days. 

 Named from two consecutive days having 

 been each counted as the 6th of March. 



Bistort, (bis'tort). [L. bistortus, twisted. ]= 

 Polygonum bistorta=Snakeweed: a plant. 



Bistriethyl=Triethyl-bismuthine=(C 2 H5) 3 Bi 

 =Bismethyl: a liquid organic radicle com- 

 pounded of ethyl and bismuth. 



Bisulca, (bi-sul'ka). [L. bisulcus, cloven.] 

 Giebel's term for giraffes, goats, &c. 



Bisulcate, (bi-sul'kat). [L. bisulcus, cloven.] 

 r=bisulcous: having the hoof cloven. 



Bisulphide, ( bi-sul'fid ). [Bi and Sulphide, 

 q.v.] A sulphide in which there are two 

 equivalents of sulphur to one of the metal. 



Bisulphate, (bi-sul'fat). [Bi and Sulphate, 

 q.v.] A sulphate in which there are two 



