Para rubber contains in its native haunts l- 5 P*> fbumen and one- 
third ounce of formic acid or half ounce of glacial acetic per 
is sufficient to coagulate it. 
In Castilloa double the quantity is required. 1 he acid should be 
diluted with at least i pint of water. 
The author recommends the use of a washing mac une sue 1 as 
is used in rubber factories. . . 
This is a short resume of this valuable paper which is worth 
the attention of all rubber planters. It is illustrated with a fev 
photographs, one of which is that of a remarkably hne Cast, lion 
2 years old in Mr. Pear's Estate at Muar —Editor . 
Rubber, Gutta-percha and Batata. 
By Franz Clout. 
An Fmdisli Edition of this useful work lias been published with 
additions arid emendations. ( Publishers-MACLARF.N & -Sons. 37 
and 38 Shoe Lane, London). Price .2/6, Colonies 13/6 
miscellaneous. 
Notices to Subscribers. 
I For the information of subscribers and others who have been 
■ ifltp tlipir ‘series of the Agricultural Bulletin ot the 
Straits an d° Federated Malay States notice is here given that Nos. 
o n c (L P 01^ Series (1891-1900) and Nos. 1, 8, 9, to, of the 
New Series Vol. ? fig "-“902)? the first issues of which have long 
been exhausted, are 'now being reprinted, with plates, and will 
shortly be ready. , 
II Subscribers whose subscriptions are still unpaid are requeste 
sibS^'^Memte^of'the^Unlte^Pla'nters^ssociatio^ar^requested 
to send in Their subscriptions in future directly to the Editor and 
not to the Secretary of the Association. 
II Subscribe rs ' ou tside the Peninsula will in future be chargee 
?3 ! 5 o per annum instead of 9 3 in order to cover postage. 
are asked to send in their returns to 
th ^rftfeL?befrth a e C .oth day of the following month if 
possible, so as to be in time for going to press. 
, vol 1 (N. S.) of the Bulletin to complete 
Ihe“e N ° AddtosT F V B: hinson! Park View, Fytche Rpad, 
Rangoon. 
