98 The Timbers of British Guiana. 



inner of some 20 fine, easily separable, stiff, papery sheets. Outside 

 of log beneath Bark smooth. 



Cses, Qualities, etc. "Very durable, especially underground, 

 but splits on exposure to the sun probably the best wood procur- 

 able in the Colony for foundations " (20). " Readily procurable 

 in logs up to 40 ft., squaring 12 ins." (2). Saws easily. Fissile, but 

 takes nails well ; planes well and easily ; turns moderately hard and 

 indifferently; takes a medium polish. Not an ornamental wood, 

 but should be valuable on account of the ease with which it can be 

 worked, and its durability underground. Sometimes confused with 

 Kretty, No. 50, on account of the similarity in colour and lustre. 



Authorities. 2. Bell, p. 10. 12. Hawtayne, p. 385. 20. 

 McTurk, p. 6. 24<z. Rodway. 



ANATOMICAL CHARACTERS. 



Transverse Section. A little darker in shade than the other 

 sections. 



Pores. Visible with the naked eye; uniform; not diminishing 

 towards the close of the season's growth, little variation except 

 within the groups; mostly single, a few pairs; evenly distributed. 



Rays. Visible with the lens, very fine ; uniform ; irregular, at 

 least the width of a Pore apart; slightly avoiding the Pores. 



Rings. Well defined, but only to the lens; boundary a fine line 

 of Soft Tissue, not much broader than the Rays; contour regular; 

 average 5 per in. of radius, in my specimens. 



Soft Tissue of definite arrangement; type of Purpleheart, No. 

 74, but on a minute scale; surrounding the Pores and joining them 

 up by narrow lines, much broken, not often continuous but 

 numerous and concentric. 



Pith.( ?) 



Radial Section. The Pores are numerous, fine reddish 

 scratches. The Rays are minute, readily visible flakes, yet showing 

 up against the lustrous ground. The Rings are not indicated. 



Tangential Section as the Radial, but the Rays need the lens, 

 Jbeing minute and about '1 m/m. high. 



Ti/pe Specimens. Authenticated by Bell, No. 95/2751. 



96. NOT IDENTIFIED. 



Native Name, " WYABALLI " (2). 



Salient Features. A hard, heavy, cold, close-grained, compact, 

 greenish-white wood. 



Characters. Weight (so far recorded), 49 Ibs. per 



cubic ft. Hardness, Grade 2, extremely hard ; compare Boxwood ^ 

 Smell or taste 0. Heartwood, "Greenish" (2) to yellow, darkens 

 "but little on exposure to the air ; surface dull to bright ; ill-defined 

 from the Sapwood, which appears to be about 1 in. wide. 



