176 WOODS OF COMMERCE. 



Eucalyptus JiemiphUia [See Canarywood], and to E. largifldrens 

 [See Gum, Slaty]. 



Box-Elder. See Maple, Ash-leaved. 



Boxthorn (Bursdria spindsa Cav. : Order Pittospordcece) . 

 Australia and Tasmania. " Native Box " or " Olive." Height 

 20 30 ft. ; diam. less than a foot. White, close-grained, and 

 taking a fine polish. Used in turnery. 



BrazilettO or Brazil-WOOd (Casalpinia brasilie'nsis Sw. : Order 

 Legumindsce), now almost extinct, C. crlsta L., C. bijiiga Sw., and 

 C. tinddria H.B.K. Tropical America. Hard, heavy woods, 

 taking a polish, and employed in cabinet work, but mainly as a 

 red dye. They contain a red colouring-matter known as Braziline, 

 soluble in water, and giving, with lime, baryta and tin chloride, a 

 red precipitate, whilst Logwood gives a blue one. [See also 

 Nicaragua wood, Peach wood, Pernambuco wood and 

 Sappan wood.] 



Break-axe. See Ironwood xxii. 



Briar. See Ash, Prickly. 



Briar -root (Erica arbdrea L. : Order Ericdcece). French 

 "Bruyere." Southern Europe. Dark brown, dense, mottled. 

 Small wood, used exclusively for tobacco pipes, imported from 

 France. 



Broom (Cytisus scopdrius Link. : Order Legumindsce). Western 

 Europe. Cultivated in Algeria, its stems being imported under 

 the trade name of " Black Orange " as walking-sticks. 



Buckeye, Ohio (Msculus gldbm Willd.) and Sweet Buckeye 

 jE.fldva Ait. : Order Sapinddcece). Eastern United States. Small 

 trees with creamy-white, light, soft, fine, and even-grained wood, 

 not strong, but often tough, easily worked. Used locally for 

 building, but more for turnery, artificial limbs, and especially 

 paper-pulp. 



Buckthorn (Rhdmnus cathdrticus L. : Order Rhamndcece). 

 Europe, Siberia, North Africa. Germ. " Kreuzdorn." A shrub 

 with narrow, greenish-yellow sapwood and orange-red heart, with 

 a narrow but distinct zone of pores in the spring wood, and 

 remarkable flamboyant groups of vessels in the autumn wood 



