PAET VII. 



JUICE. 

 YIELD OP JUICE PER TREE. 



Our observations show that most of the estimates hitherto 

 made are much too high. Twenty trees of various ages and in 

 various conditions were selected in the same garden and were 

 numbered 1 to 20 and metal labels with the numbers stamped 

 on them were nailed into the trees. Whenever the trees yielded, 

 the juice was, if possible, measured and its specific gravity taken. 

 In the case of trees Nos. 3, 11, 16, 20, the amounts of sucrose and 

 reducing sugar were regularly determined. The data obtained are 

 all entered in the tables. This experiment was carried out in 

 the cold weather 1911-12. Tapping operations commenced very 

 late this season because there was a large area of jute grown in 

 Jessore and the harvesting, retting and marketing of this de- 

 layed the date sugar operations beyond the normal. The above 

 trees in consequence did not yield their first juice till Decem- 

 ber 4th. Moreover it was not possible to always measure the 

 juice. For those days which were missed figures have been 

 inserted in brackets and these have been computed from a 

 consideration of the yields given on the preceding and succeeding 

 occasions. The data for four of the trees have been plotted as 

 curves in Charts Nos. 14. 



