TABLE OF CONTENTS xi 



CHAPTER VIII 



THE PESTS AND DISEASES OF HEVEA 



Plantation conditions. Epidemics. Wind. Animals. Insects. Termes 

 Gestroi. Fungus diseases. Diseases of the roots. Fames semitostus. 

 Brown root disease. Diseases of the stem. Canker. Pink disease. 

 Die-back. Burrs and nodules. General sanitation . . 176 196 



CHAPTER IX 



THE CULTIVATION OF SPECIES OTHER THAN HEVEA 

 BRASILIENSIS 



Castilloa. Manihot. Funtumia. Fitus elastiea . . 197 209 



CHAPTER X 



THE CHEMISTRY OF INDIA-RUBBER 



Difficulties of study. Composition of technically pure rubber. Physical 

 properties. Destructive distillation. Synthesis. Chemical constitution. 

 Vulcanisation 210 219 



CHAPTER XI 



THE MANUFACTURE OF RUBBER GOODS 



Summary. Washing. Drying. Mixing. Preparation of sheet rubber. 

 Calendering. Miscellaneous articles. Rubber solution. Vulcanisation. 

 Hot curing. Dry process. Bath process. Cold curing. Reclaimed rubber. 

 Vulcanite. The testing of rubber goods .... 220 237 



INDEX 238245 



