440 FOX WORTHY. 



( Vvlmi woods were taken from Gamble. Those from the Malay Peninsula 

 from Ridley and those from the Dutch Indies from Van Eeden and from 

 G. J. Filet's Dictionary of Plant Names. Many of the notes on structure 

 are taken from Gamble. 



I have not been able to prepare a key to the different woods of (he 

 region; but, with the aid of Gamble's Manual, it has been possible to 

 prepare 1 family summaries in some cases. 



The term "seasonal or growth ring" has seemed preferable to "annual 

 ring" and so is used. Also the term "pith-ray" is preferred to "medul- 

 lary-ray." 



Unless specially indicated, the structure described is that which is 

 seen in the cross section, because it is in this section that the relationship 

 of the dill'erent elements composing (] )0 wood is most clearly shown. 

 The terms "pore" and "vessel" are used interchangeably. 



The structural feature most often noted in the longitudinal section 

 of the wood is the numerous parallel transverse lines or "ripple marks." 

 These are due to regularly arranged pitting of the tracheids (see Plate 

 XXVI, fig. 55) or to regular arrangement of small pith-rays. The latter 

 condition is probably much the less frequent; and, when it occurs, gives 

 the appearance of ripple marks only on the tangential section. 



It will be remarked in following through these notes that a common 

 or trade name usually applies to more than one species of plant. It 

 frequently happens that the wood structure is identical for a large group 

 of species. Occasionally the structure is seemingly identical for several 

 genera, as in the Ebcnacem, which seem to have only one type of structure 

 for the whole family. 



The following are the abbreviations which I have found it convenient 

 to use in the species notes : 



Gamb. Gamble, J. S. A Manual of Indian Timbers. New and revised edi- 



tion. London, 1902. 

 Phil. Woods Foxworthy, F. W. Philippine Woods. Tbis Journal 2 (1907) 



Botany 351-404. 

 Niird. Nordlinger, IL Hol/.querschnitte. Stuttgart (1851-1888). Vols. 



1-11. 

 Van Fed. Van Eecden, F. W. Iloutsoorten van Nederlandscb Oost-lndie (3d ed. 



by J. J. Duyfjes) . Cat. XII. van bet Kol. Mus. te Haerlem. 1906. 

 Ridl. Ridley, II. N. Timbers of the Malay Peninsula. In the Agricultural 



Bulletin of the S. S. and F. M. S. Singapore. Vol. 1 (1901). 

 Wiesner Wiesner, J. Die Rohstoffe des Pflanzenreichs, 2d ed. Leipzig. 



1903. Vol. 2. 

 Boulger Boulger, G. Wood, 2d ed. Loudon, 1908. 



Stone stone, II. The Timbers of Commerce. London, 1905. 



Lewis Lewis, F. E. Ceylon Tea box Woods. In Trop. Agric. 18. (1898) 



307-310. 

 Gard. Gardner, R. Mechanical tests of thirty species of Philippine Woods. 



Forestry Bureau (Philip.). Bull. 4, 2d ed., 1907. 

 Newton Newton, Howard. Notes and Experiments on the different kinds of 



Timber in Ordinary Use in the Straits Settlements. Singapore, 



1884. 



