14 CONTENTS 



CHAPTER PAGE 



XVIII. VANILLA ...... 164 



XIX. DRY FARMING ..... 173 



XX. THE NATURAL FORESTS .... 178 



XXI. THE MANAGEMENT OF MANQROVE FORESTS . . 183 



XXII. RAINFALL AND TEMPERATURE . . . 188 



XXIII. THE PRAZO SYSTEM . . . . . 200 



XXIV. NATIVES AND LABOUR IN TROPICAL EAST AFRICA . 206 

 XXV. SECURITY OF TENURE — THE FISCAL SYSTEM . 221 



APPENDIX I. NOTES ON CEARA RUBBER IN EAST AFRICA . 231 



,, II. THE LAND LAW .... 235 



INDEX ....... 347 



