THE TIMBERS OF COMMERCE 



2-22 pores (usually over 10) : groups oddly shaped like bubbles 

 in froth and apparently connected radially at times : oval : 

 some red contents : appear light-coloured. 



Rays. Need lens, size 5-6, uniform : somewhat irregularly 

 spaced : running round the larger pore-groups, very irregularly 

 bent and waved, less than a pore-width apart : very many, 

 12-14 P er mm - : lighter than the ground and much denser. 



Rings. Obscure. The vague zones here and there where the 

 lines of soft-tissue are more or less crowded may indicate the 

 limits of annual growth. 



Soft-tissue. Very plentiful and the great feature. Innumer- 

 able, concentric, undulating lines, size 2-3 (ray-scale) and 7-11 

 per mm., of coarse cells, size 7 (pore-scale) : the same colour as 

 the rays and making a fairly regular network with them ; contour 

 regularly crenate. 



Flecks occur at times of the same' colour as the rays and 

 linear in shape. 



Pith. ? 



Radial Section. Pores not prominent : rays minute crystalline 

 flakes : soft-tissue in many fine, parallel lines, inconspicuous but 

 a feature. 



Tangential Section. As the Radial, but the rays are minute 

 lines which exhibit minute drops of red resin when moistened. 



Type specimen authenticated by the Forest Officer to the 

 Government of British Guiana. From a log sent to the Colonial 

 and Indian Exhibition. 



No. 1 1 8. MONKEY-POT. Lecythis grandiflora. 



Aubl. 



PLATE IX. FIG. 73. 



Natural Order. Myrtaceae. 



Alternative Names. Wadaduri (78). Cuyas de Macaco (A. R. 

 Wallace, Travels on the Amazon, p. 34). Canari-Macaca : Pao 

 Macaco (76). Sapucaia : Marmites de Singe : in Brazil (99). 



Sources of Supply. British Guiana, Brazil and Tropical 

 Africa generally 



Physical Characters, etc. Recorded dry-weight 74 Ibs. per 

 cu. ft. Hardness Grade 2, compare Boxwood. Smell and taste 

 faint if any. Burns well with a lively, noisy flame and a faintly 

 resinous smell : embers glow in still air and leave a considerable 

 amount of ash. Solution practically colourless. 



Grain. Extremely even, dense and smooth. Surface lustrous, 

 feels smooth and cold like Ebony but less so than L. Ollaria. 

 No. 117. 



Bark. ? 



136 



