300 



THE RUBBER INDUSTRY 



rivers is due to the preponderance in those districts of 

 the variety of Hevea Brasiliensis known locally as the 

 black Hevea, and that the trees in the vicinity of the 

 River Tapajoz, whence Mr. Wickham obtained the seed 

 for the Orient in 1875, are a ^ f tne white variety, pro- 

 ducing rubber of an inferior quality. It is true that 

 the product of the lower portion of the Amazon Valley 

 is distinctly inferior to that shipped from the districts 

 of the upper rivers, and does not come under the 



ESTIMATED COST OF PRODUCTION, 1914-1919 



Country. 



9- 

 10. 



Malay Peninsula 



Ceylon 



Southern India 



Burmah 



Borneo and Sarawak 



Java 



Sumatra 



Dutch Borneo, Celebes, etc 



Saigon 



New Guinea, Philippines, and other 

 islands of Oceania .. 



Cost per Pound 

 in Pence. 



13* 



designation of fine hard Para ; on the other hand, the 

 difference of soil and the effects of cultivation have 

 altered many characteristic features of the tree as 

 regards foliage, development, and production. All in- 

 dications tend to show that a decided improvement has 

 taken place in the general condition of the tree in its 

 present surroundings, and it is not surprising this 

 should be the case when all the circumstances are 

 given due consideration. In 1912 an attempt was 

 made by Dr. Jacques Huber to differentiate between 



