19!i2.] 43 



NOTES ON 23 TRINIDAD AND TOBA.GO TIMBERS. 



By C. S. Rogers, 

 Conservator of Forests. 



The following table sets forth the information at present available 

 concerning several native timbers which it is thought maybe of interest 

 to consumers both within and outside the Colony. 



2. The information contained in the table has been compiled both 

 from local inforiuation and from the undermentioned publications : — 



Timbers of Commerce by Stone. 



Timbers of British Guiana by Stone and Freeman. 



Indian Timbers by Gamble. 



Timbers of the World by A. L. Howard. 



The Catalogue of the British Erajjire Timber Exhibiton of 1920. 



3. The weights of the timbers have all been determined locally from 

 air-dried specimens in the Forest Office and have, as far as possible, 

 been checked by Prestoe's list of 1876. These weights have been given 

 in preference to tho.?e recorded in the authorities quoted which 

 principally refer to timbers of the same species from countries other 

 than Trinidad. 



4. The figures denoting resistance to different stresses that are 

 variously expressed in the publications referred to have for the sake of 

 uniformity been re-calculated to conform to one standard. 



5. The grades of hardness given are those used by Messrs. Stone and 

 Freeman in " Timbers of British Guiana." 



6. The statements of quantities available are intended to refer only 

 to undertakings on a large scale. Small quantities of all the timbers 

 are always obtainable with more or less facility according to locality. 



