No. 12.] 
DECEMBER, 1910. 
Vol. IX. 
Agricultural Bulletin 
OF THE 
STRAITS 
AND 
FEDERATED MALAY STATES. 
EDITED BY 
H. N. RIDLEY, m.a., f.r.s., f.l.s., f.r.h.s. 
Director of Botanic Gardens, 8.8. 
Page. 
A Preliminary Note on the Fungus Causing the “ Die-Back ” 
Disease of Cacao and of Para Rubber . . . . ■ - ■ 475 
A Bacterial Disease of Potato and Tomato . . . . . . 478 
A Handbook of Fungus Disease of West Indian Plants . . . . 480 
Planting of Trees . . . . . . . - 481 
The Sterilization of Soil as a Means to Increase its Fertility • * 482 
The Control of Scale Insects by Fungoid Parasites . . . . 486 
Cotton in German East Africa . . . . . . 487 
Purification of Brackish Water on Estates . . . . . . 488 
Damars . . ■ . ■ * • • . . . . 490 
Oil from Rubber Tree Seeds . . . . . . 493 
Obituary . . . . . . . . . . . . 495 
Personal • • • ■ • • • • • ■ 496 
Minutes of Meeting . . . . . . . . . . 497 
Export Telegrams .. .. .. .. ..515 
Weather Reports .. .. .. .. 517 
Number of Trees in a Acre of Ground set at Regular Distance 
Apart in Square . . . . . . . . . . 524 
From the first of January, 1910 
The Price of the Bulletin will be as follows; 
Annual Subscription for Straits Settlements and Federated Malay States . . $5 00 
Annual Subscription for other places in Malaya $5.50 
Annual Subscription for India and Ceylon . . . . Rs. 9-8*0 
Annual Subscription for Europe (Thirteen Shillings) .. .£0-13-0 
Single Copy .. .. •• 50etS. or S 1/2 d 
Whole Volume . . $5.00 
All Subscriptions are payable strictly In advance. 
To be purchased at the Botanic Gardens, Singapore, from Messrs. Kelly 
and Walsh, Ltd., No. 82 Raffles Place, aud 194 Orchard Road, and 
The Straits Times Office, Cecil Street, Singapore. 
Printed at the Straits Times Press. Ltd., Singapore. 
