TABLE OF CONTENTS. 
Page. 
Introduction ..••**•••• ^ 
CHAPTER I. 
A Resume of the Process of Tannin Extract Manufacture .... 3 
Different Processes of Decolourisation ..... 8 
Mixed Extracts .**•••* * 12 
CHAPTER II. 
Factors that determine the Quality of Tannin Extracts with special refer¬ 
ence to Mangrove Bark Extract ....... 14 
CHAPTER III. 
Defects of Extracts that have been experimentally manufactured in Burma 18 
CHAPTER IV. 
The Bark of Mangrove Species considered as raw materials for Tannin 
Extract manufacture .•••••• .24 
CHAPTER V. 
The Estimates of Profit and Loss of the manufacture of Mangrove Tannin 
Extract in Burma.. 29 
APPENDIX A. 
The Development of Trade in Tannin Extracts . *34 
APPENDIX B. 
Names of Firms to be consulted for Tannin Extract Machinery . - 85 
