ROYAL BOTANIC GARDENS, KEW. 
BULLETi: 
MISCELLANEOUS INFORMATION. 
XXXIX.-PARA RUBBER. 
(Hevea brasiliensis, Mnell. Arg.) 
The Rise and Fall in Prices of the Forest Product for 
the past 30 years and of the cultivated form foil 
the past 4 years. 
In the Km- Bulletin for 1898 a chart was published shearing 
the avenge n rices of tine 1'ara rubber itftfrn/ hm*ilwns,s ), tor 
the ve; t rs W 7 to 1.S1W inclusive, and in view of the constantly 
increasing importance of the rubber industry it has been 
nmsi.l , d rvo. lieni to bring this up to date. A graphical 
: entering on too great 
detail it will be observed that the general tendency has been 
...» upward one, although >n, u . oi rhe \ u-iar ..us aiv rather remark- 
able. At no period has the price remained fixed rhi 
particulai ; ~~ lu ^_' 
wi !, i |M _. , :W nh : rhe _i-m - - d viation fro in it in lS,i» 
with a range of 2s. The figures, maximum, minimum, and 
average, in all instances, are given minus fractions of a penny. 
Some explanation is necessary in connection with the lines 
