206 GIBBS. 



Plate XIX. 

 Starch grains of the sugar palm. Photograph by nonpolarized light. X 120. 



Plate XX. 

 Starch grains of the sugar palm. Photograph by polarized light. X 120. 



TEXT FIGURES. 



]\rap No. 2. Showing distribution of the coconut palm in the Philippine Islands. 



Fig. 3. Young inflorescence of coconut palm, (a) Base of the flower stalk. (&) 

 Cut end from which the sugar sap flows, (c) Female flower. One- 

 seventh natural size. (Moliseh.) 



Map No. 3. Showing distribution of the buri palm in the Philippine Islands. 



Fig. 4. Diagram of the curves for the inversion, and alcoholic and acetic acid 

 spontaneous fermentations of the buri palm sap. 

 5. Diagram showing the sap flow, per cent Brix and sugar yield of the sap 

 of the buri palm. 



