THE ALCOHOL INDUSTRY. PART I. 



185 



During the first sixteen days the flow was somewhat irregular, due partially 

 to experimentation and an effort to find the most efficient thickness of slice to 

 remove at each cutting and partially to idiosyncrasies of the tree. After this 

 initial period the effort was made to remove slices of uniform thickness. A 

 gradual increase in the daily flow began on the seventeenth day. It increased 

 from approximately 1.5 liters at that time to approximately 12 liters on the 

 forty-first day, when the palm may be said to have reached what the natives call 

 its malorayat stage. Tliis term is defined as that period when the sap is of better 

 quality and the flow is rapid. The improvement in the quality of the sap is 

 recognized by the increased sweetness. Previous to the arrival of the malorayat 

 stage none of the sap is used as a drink or for other purposes. 



The daily flow of sap and the rise and fall of the sucrose content, 

 expressed by the Brix, may be represented by the curves shown in figure 

 No. 5, which is compiled from the data given in Table XXVI and from 

 analyses of the sap. 





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Fig. 5. — The sap flow, per cent Brix and sugar yield of the sap of the buri palm. 



