THE TIMBERS OF COMMERCE 



djepan hitjiel : Djeroeh Bunten : Djerook djepan sedang : 

 Djeroeh hetjiel : Djeroeh besaar : Djerook ragie : Limon manie 

 in North Java (123). China Orange in Barbadoes. 



Physical Characters, etc. Weight about 58 Ibs. per cu. ft. 

 Hardness Grade 2, extremely hard, compare Boxwood. Smell 

 and taste none. Burns well with a lively flame, embers glow in 

 still air. Solution with water or alcohol colourless. 



Grain. Very fine, dense and even. Surface beautifully smooth 

 and lustrous, the lustre being due to the ground- tissue : does 

 not readily soil. 



Bark. Very thin, strongly adherent, smooth, green streaked 

 with black. 



Uses. Turnery, cabinet making : a wood of great beauty : 

 splits readily and cleanly. 



Authorities. Nordlinger (86), vol. 4, p. 12. Hough (49), 

 part V (25). Barham (8). Saldanha da Gama (99). Usually 

 confused with Lemon-wood, from which it is scarcely distin- 

 guishable : also with Brazilian Yellow-wood. 



Colour. Lemon or Citron colour. Sap-wood the same, not 

 denned from the heart-wood. Quite uniform. 



Anatomical Characters. Transverse section : 



Pores. Need lens, rather fine, size 4, rather variable : in 

 radial (rarely nestlike) groups of 1-2, or occasionally 3-4 : few 

 10-30 per sq. mm. 



Rays. Need lens, medium, size 4, uniform : long but often 

 tapering ; equidistant, a pore-width or less apart : lightly un- 

 dulating : white : less dense than the ground-tissue : very 

 numerous, 6-9 per mm. 



Rings. Obscure, only to be made out where a rather darker 

 Autumn zone adjoins a spongier Spring zone : contour well- 

 rounded. 



Soft-tissue. Many concentric, narrow, white lines sometimes 

 making the full circuit of the ring : breadth about equal to 

 Grade 3 (Ray-scale), or rather broader than the rays themselves : 

 contour rounded, or at times waved. Also encircling and con- 

 necting the pores here and there. 



Pith. ? 



Radial Section. The pores appear as very fine, dull lines : the 

 rings are not traceable with the naked eye. The rays are white. 



Tangential Section. As the Radial, but the rays a"re extremely 

 minute lines, scarcely -25 mm. high. 



Type specimen authenticated by Romeyn B. Hough. 



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