26 The Timbers of British Guiana. 



Bark. About in. thick, brown, inner layer very thin, dark 

 brown and fibrous; outer layer lighter in colour, crumbling, and 

 smooth without. Closely adherent. Surface of log beneath bark, 

 smooth. 



Uses, Qualities, etc. " Has the great advantage of not split- 

 ting. Has been used for gun-stocks not plentiful is a small tree 

 squaring from 8-10 ins." (2). Works easily and well; polishes 

 indifferently. Of little value for export. Sometimes confused with 

 Eta-balli on account of the similarity of name. 



Authority. 2. Bell, p. 5. 



ANATOMICAL CHARACTERS. 



Those of Kurahara, with the following differences. (Compare 

 No. 57 and No. 59, Frontispiece.) 



Transverse Section. Not much darker than the other sections. 



Pores. Just visible with the naked eye as holes. 



Rings. Doubtful; boundary ( ?) a narrow zone of denser wood 

 here and there; contour regular. 



Soft Tissue of definite arrangement; type of Bullet-wood, No. 12 

 (cf. 27a., p. 148. PL X., fig. 83). A series of fine, close, numerous, 

 concentric lines of slightly undulating contour, rather broader than 

 the Rays, and making a network with them. 



Radial Section. Brilliant. The Pores are exposed in pairs or 

 threes, hence the grain appears coarse; darker than the ground. 

 The Rays are fine, lustrous, crystalline, very narrow bars. The 

 Rings are not indicated. The Soft Tissue appears as very fine, 

 parallel striations. 



Tangential Section as the Radial, but not brilliant, hardly 

 lustrous. The Rays need the microscope, being minute. 



Type Specimens. Authenticated by Bell, No. 25/2681. 



26. VOCHISIA TETRAPHYLLA D.C. (Probably). 

 Nat. Ord., VOCHISIACE.E. 



VOCHYA, VOCHY, VOCHYSIA ARE SYNONYMOUS WITH VOCHISIA. 



Native Name, "ETA-BALLI" (2). N.B. NOT ITA-BALLI. 



Salient Features. A light, soft wood of an uniform pinkish 

 (reddish -brown) colour and pretty silver-grain. 



Physical Characters. Dry weight (so far recorded), 47J Ibs. 

 per cubic ft. Hardness, Grade 7, soft, compare Pine. Smell 

 when dry 0. Taste 0. Heartwood darkens a little on exposure to 

 the air. 



Colour of Sapwood similar to that of the Heartwood but lighter 

 (whiter or greyer), not defined from the Heartwood, but merging 

 into it; width about 1 in. Surface clean. 



Bark. J-J in. thick. The outer, lightly fissured brown layer 

 flakes off and exposes the quite smooth, terra-cotta-coloured inner 



