14 The Timbers of British Guiana. 



Salient Features. A light, soft wood with a lustrous surface 

 a iid uniform greenish or yellowish colour. 



Physical Characters. Weight (so far recorded), 26 J Ibs. per 

 cubic ft. Hardness, Grade 7, soft; compare Alder. Smell and 

 taste 0. 



Colour as above, but it is doubtful whether there is any dis- 

 tinction between the Heartwood and Sapwood. It is probably a 

 Sapwood tree. The wood darkens but little on exposure to the 

 air. The width of the Sapwood, if Heartwood is ever produced, 

 will exceed 6 ins. Surface brilliant and satiny. 



Bark. About in. thick; smooth; reddish-brown; full of 

 small white bodies (lens needed) ; friable. Surface of log under 

 bark striated. 



Uses, Qualities , etc. " Suitable for inside wall-boarding. Is 

 readily procurable in logs up to 30 ft. in length, and squaring 

 8-9 ins." (2). Takes nails well, but will not hold them. Planes 

 and turns easily but badly; polishes well. An inferior wood of 

 no export value, but which may find uses in the Colony on 

 account of the ease with which it can be worked. Its appearance 

 is good, as its lustre is so rich, but its durability is doubtful. 

 Sometimes confused with Boohoorada, No. 11, Barada-balli, No. 7, 

 and Barataballi, No. 8, on account of the similarity of the names; 

 also with Oolu, No. 69, and Yellow Cirouaballi, because of their 

 general resemblance. 



Authorities. 2. Bell, p. 4. 



ANATOMICAL CHARACTERS. 



Similar to other Nectandras, more especially of Yellow Ciroua- 

 balli, No. 18, and PI. No. 89, frontispiece. The points of difference 

 are as follows : 



Transverse Section : 



Pores. Visible to the naked eye. 



Says also visible. 



Rings not define . 



Radial Section. The Pores appear darker than the wood. 

 The Rays are readily visible but small, brownish flakes. 



Tangential Section as the Radial, but if anything the surface 

 is more satiny. For other details the description of No. 18 should 

 be consulted. 



Type Specimen. Authenticated by Bell, No. 13/2669. 



14. CARAPA GUIANENSIS. AUBL. 



Nat. Ord., MELIACE.E. 



FRONTISPIECE No. 14. 



Synonym, C. GUAYANENSIS. AUBL. 



The wood described under the name of C. guianensis by Martin - 

 Lavigne is incorrectly named. 



Alternative Names. "Highland Crabwood, Caraba (Red)" 

 (2); "Andiroba branca, Caraipa " (21); " Krapaboom " (8); 

 "Carapa, Andiroba" (1); Arbre a huile de la Guyane Fr. (20c) : 



