H. E. ANNETT. 375 



Java T. M. 0. white is a better sugar than Dobarrah though it 

 fetches only 60 per cent, of the price the latter does. In this case 

 one must put down the difference in price to the great prejudice 

 in favour of native sugars. 



The following are the only other analyses of date sugar which 

 I have been able to find. 



The first is described as an analysis of date sugar as sold in 

 Calcutta and is by M. Deon. 1 



Sucrose . . . . . . . . 87*97 



Reducing sugar . . . . . . 1'71 



Gum .. .. .. .. 4'88 



Water and volatile matter .. .. 1'88 



Ash 5, .. .. .. .. 0*50 



Mannite, fatty matter, matters not estimated and 



lost .. 3'06 



100-00 



M. Deon states that the sugar was in full viscous fermentation 

 and that it is known that this fermentation is accompanied by the 

 formation of mannite and a gummy substance. This gum is soluble 

 in water, insoluble in alcohol, precipitated by sub-acetate of lead? 

 dextrorotatory, without action on Fehling solution and converted 

 into glucose on boiling with dilute acids. 



Thorpe's Dictionary of applied chemistry 2 quotes an analysis 

 made in England of palmyra jaggery. 



o/ 

 /o 



Sugar .. . .. .. 78*00 



Glucose 

 Ash Soluble 



unsoluble 



Moisture 



8-93 

 1-71 

 0-86 

 6-74 



Undetermined organic matters . . . . 3'76 



100-00 



1 Bull. Soc. Chim. de France. 

 * Vol. Ill, p. 624. 



