X CONTENTS. 



CHAPTER IX. PAGE 



COLLECTING THE LATEX - 68 



Tapping Tapping Implements The Laticiferous System of the Para 

 Rubber Tree Flow of Latex Increased by Wounding the Tree 

 - When to Tap V-shaped Incisions Herring-bone-shaped Inci- 

 sions Spiral Incisions Pricking Various Methods of Tapping 

 General Remarks on Tapping Collecting Vessels Tapping 

 Areas. 



CHAPTER X. 

 RUBBER MANUFACTURE 93 



Properties of Rubber Caoutchouc Resin Proteids Mineral Matter 

 Effects of Vulcanisation Preparation of Rubber from the Latex 

 Suggested Method for Preparing Rubber Biscuits on Small 

 Estates A Centrifugal Strainer Coagulating Machines Crepe 

 and Washed Rubber Worm Rubber Lace Rubber Flake 

 Rubber Block Rubber Scrap Rubber Washing Machines 

 The Rubber Factory. 



CHAPTER XI. 



THE ANTISEPTICISATION OF RUBBER - 128 



Defects of Plantation Rubber Creosoting the Latex Coagulation 

 with Formic Acid Discoloration of Rubber and Oxidising 



Enzymes Tackiness. 



CHAPTER XII. 

 DRYING AND PACKING RUBBER FOR EXPORT - 136 



Drying the Rubber Vacuum Drying Packing Rubber for Export. 



CHAPTER XIII. 



YIELD OF PARA RUBBER FROM CULTIVATED TREES - 145 



Ceylon Malay Peninsula Gold Coast, West Africa, from Various 

 Estates in 1905, 1906, 1907, 1907-8. 



CHAPTER XIV. 



ESTABLISHMENT AND MAINTENANCE OF A PARA RUBBER 



PLANTATION - 



Estimated Cost in Ceylon and Malaya. 



153 



CHAPTER XV. 

 COMMERCIAL VALUE OF THE OIL IN HEVEA SEEDS - - 169 



INDEX I?s 



