4&2 
India-Rubber Annual Statistics. 
Export from Para and Manaos — Quantities are m 
for 1900. 
Ex- 
ports. 
Europe, 
United 
States. 
Total Ex- 
ported. 
1900 
14, 3i3>996 ' 
12,434,667 
26,748,663 
1899 
IU55L69I 
1 3*878,3 1 8 
25,430,009 
1898 
12,078,742 
9,830,265 
21,909,007 
1897 
10,913,464 , 
1 2,620,858 
22,536,322 
1896 
12,556,424 
9,045,450 
31,601,874 
1895 
1 1 7 1 
1 1,251,410 
20,769,581 
1894 
9,012,658 
10,461,030 
19,473,688 
1893 
7.785,270 
11,344,929 
19,130,199 
1892 
7,077,623 
IM3L559 
18,509,182 
1891 
6,957*^77 
10,831,528 
17,789,405 
Rubber Planting in Costa Rica. 
Kilograms— 
Stock on the 
31st Dec. 
93COOO 
901.000 
1.336.000 
943.000 
1 .062.000 
687.000 
846.000 
1.705.000 
919.000 
1.447.000 
We draw attention to an interesting letter on his subject given 
in our daily issue and Tropical Agriculturist from Mr. Edward 
Coles, son of the late Rev. S. COLES, C. M. S., who has for many 
years been settled as a coffee and cacao planter in Costa Rica. 
He deals today with Rubber and shows that in one district or valley 
as many as 600 hectares or 1,500 acres have either been planted, 
or are in course of preparation for planting. Labour, hovyever, 
must be a difficulty as compared with Ceylon, the Straits or India, 
both as regards supply and price. Some interesting particulars are 
given by Mr. COLES. Planting Rubber trees at 20 to 30 feet apart 
is about the rule observed in Ceylon when Rubber is put among tea 
or cacao. We suppose when put in alone the distance between 
trees is less? We believe San Carlos Valley, iVIexico, must be 
about 20 degrees North latitude as compared with 6 to 8 in our 
Ceylon Rubber planting districts. * , . 
The annals of the Royal Botanic Gardens, Peradeniya, of May, 
contains among other interesting articles one on Analyses of Ceylon 
Rubber and one on Jack Milk. The last part of the Analysis will 
be interesting to planters. 
From the "planter’s point of view the chief lesson to be learnt 
from Mr. Parkin’s work and the above analyses is to practise the 
greatest possible cleanliness in collecting and preparing rubber ; 
any rubber dried on the tree or otherwise contaminated will sell 
for a much lower price as “scrap” or “negro-head.” Mr. Parkin’s 
method of collection in separate tins under each cut and placing 
water in the tins the great bulk of the milk can be brought in in the 
liquid condition and filtered, and can then be treated in clean tins, 
with or without acid, as local experience shows to be suitable. 
Quick drying is advantageous, but excessive heat must be avoided, 
as under its influence the rubber becomes sticky and loses most of 
its value ; sample 5, which was dried on the tree in more or less 
sunlight, was thus deteriorated. It is shewn by a French chemist 
