No. 12.] 
[VOL. II. 
DECEMBER, 1903. 
AGRICULTURAL BULLETIN 
OF THE 
STRAITS 
AND 
FEDERATED MALAY STATES. 
EDITED BY 
H. N. RIDLEY, m. a., f. l. s., 
Director of Botanic Gardens , .S'. .S' 
CONTENTS. 
PLATES VI U & IX— RUBBER PREPARATION IN THE 
BOTANIC GARDENS, SINGAPORE. 
• Page. 
1. The Chemistry of Rubber, by P. J. Burgess ... 385 
2. The Canker Fungus in Rubber ... ... 389 
3. Rambong Rubber from Klang... ... ... 392 
4. Para Rubber from Johore ... ... ... 393 
5. Para Rubber from the Botanic Gardens ... ... 395 
6. Sale of Para Rubber ... ... ... 396 
7. The Cultivation of Cotton in the Federated Malay States 396 
8. Cotton in the Straits Settlements forty years ago ... 398 
9. Encouragement of Agriculture among the natives ... 399 
10. Fruiting of Travellers Tree ... ... ... 405 
11. Rainfall in London and Penang — A Comparison ... 405 
12. Erratum. — Rainfall for November, 1903 ... ... 406 
13. Miscellaneous, Notices to Subscribers ... ... 407 
14. Singapore Market Report ... ... ... 408 
15. Exports from Singapore & Penang to Europe & America 409 
16. Meteorological Returns ... ... ... 412 
Animal Subscription— Three Dollars. 
Single Copy— Fifty Conts. 
{Annual Subscription— Outside the Peninsula— Three Dollars 
j’o be purchased at the Botanic Gardens, Singapore, 
or from MESSRS. Kelly & Walsii, Limited, 
No. 6, Battery Road, Singapore. 
SINGAPORE; 
Printed at the Government Printing Office. 
