172 INDEX. 



PAGE 



Fatty substitutes in rubber articles. . . . 135 



Federated Engineering Co., Washing machinery of . . 131-133 



Fencing . . . . . . 24, 25 



Ficus elastica rubber, Chemistry of . . 126 



Flake rubber . . . . . . 144 



Flowers of Hevea brasiliensis . . . . 15 



Flowering of Para rubber in Amazon . . 10 



Ceylon . . . . 2 



Straits . . . . 2 



Forest, Effect on soil of . . . . 43 



Formalin, Use of .. .. .. 65,66,107,126 



Formic acid, Action of .. .. 110 



Fruit, diseases, Nature of .. .. 148, 149 



Garden hose, Composition of .. .. 135 



Green manuring . . . . 43-48 



equivalent in artificial manures . . 46 



method of sowing . . . . 46, 47 



,, using .. .. 46, 48 



Nitrogen in . . . . 46, 47, 48 



— plants to us« . . . . 46-48 



root growth ,. . .. 43,44,45 



Groundnuts .. .... .. 31,32,46 



Growth in circumference . . . . 18, 19, 20, 21 



in height .. .. .. 3 7,18,19,20 



interplanted with tea and cacao . . 19 



in Federated Malay States . . . . 21 



in Gold Coast . . . . 21 



■ in India . . . . . . 22 



in Straits . . . . . . 22 



of roots . . . . . . 23 



Rate of, in Ceylon . . 17, 18, 19, 26 



Gutta Rambong rubber, Chemistry of . . 126 



Heat cure in vulcanization . . . . 134, 135 



Henaratgoda, Soil of . . . . 33, 34, 43 



Experiments at 63 73 74, 81, 82. 83, 90, 94-99, 105 



Hydrofluoric acid . . . . . 110 



Impurities in rubber .. 124,127,129-131,144 



Removal of .. ... .. 115,129-133 



Insoluble constituent in rubber ... .,. 127 



Intercrops .. .. .. 30,31,32 



Distance fcr . . . . . . 30, 32 



Future of .. .. .. 31,32 



Introduction of Para rubber to Australia . . 2 



Borneo t . . 2,16 



Ceylon . . 1,2,3 



Fiji . . 2 



Gold Coast . . ^ 



— India . . . . 2 



Jamaica . . 2 





