H. E. ANNETT. 



327 



Jessore. In order to get the total yield of juice in 24 hours one 

 must add the amount of juice flowing during the day Measurements 

 of this were not made, but it would probably be about 30 to 

 50% of the amount collected at night. 



VARIATION IN COMPOSITION AND YIELD OF JUICE AT DIFFERENT 

 PERIODS DURING THE 



We have already seen (p. 298) that jiran juice is of better 

 quality than dokat juice, and further that commonly jiran juice is 

 yielded in larger quantity than dokat. This in turn is better in 

 quality than tekat juice and also its yield is much greater. It 

 seemed of interest to determine if the yield of juice varied in its rate 

 of flow and composition during a single night. 



Accordingly during February 1911 certain trees were selected 

 and their juice collected at various periods during the night, mea- 

 sured and analysed. 



