to reach the boiling point, after the lime has been gradually 

 added by stirring, there should be no lime left in the clarified 

 liquor. Lime is not altogether insoluble in water ; but with 

 phosphoric acid it forms an insoluble compound which is 

 bound to get precipitated. Naturally there is some glucose 

 present in cane-sugar. This is got rid of by treating the 

 gur (after it has been boiled and crystallized) to a few rounds 

 of the turbine. A slight modification of the native system 

 of gur-mzking may be thus employed in obtaining white 

 sugar, good enough for all ordinary use. 



598. At Sibpur, we found gur made by clarifying as above 

 can be easily divested of molasses by simply drilling a hole 

 at the bottom of each kalsi or pot of gur. The residue 

 in the kalsi, spread out in the sun for a day, then powdered 

 fine in a dhenki, and then again spread out in the sun for 

 two days, is good white sugar, which will be accepted as 

 sugar at least in the native market. It is highly desirable to 

 introduce this very simple method of making sugar among 

 native sugar-cane cultivators of India. A sample of the sugar 

 made by this process has been sent by the writer of this 

 Hand-book to the Economic Section of the Indian Museum 

 for exhibition (Registered No. 15085 3). 



599. The Sibpur experiment with a view to obtaining as 

 good sugar and gur as were obtained from sugar-cane juice, 

 from the juice of the date-palm, proved a failure. The failure 

 is probably attributable to the fraud practised universally by 

 the sellers of date-palm juice in Calcutta and its neighbour- 

 hood. They adulterate the juice with a very large proportion 

 of water and to sweeten the mixture they add some date-gur 

 molasses. Such a mixture of molasses and water with a small 

 proportion of cane-sugar, cannot be expected to crystallize 

 properly. 



