E. J. EBERT ON BEET-SUGAR. ^qo 



2 pounds of animal blood to each 100 pounds of it, must then be 

 increased in its temperature to 60<^ or 65° E, and have another 

 addition of 4 to 6 per cent, of finely-powdered bone coal, and the 

 entire mass be brought slowly to boiling. Soon the sigis of the 

 intended refining will show themselves, and be entirely finished 

 when the solution appears transparent, clear, and a white foam 

 with transparent bubbles, rises up from out of the surface of the 

 boilmg substance. This must now be drawn off, and conducted 

 over coal filters before it can be farther boiled. In order to re- 

 move the coal remnants and other impurities, albumen (white of 

 eggs), stirred in water, may bo mixed to it while boiUno- As 

 to the rest, it is subjected to the same manipulations as before 

 spoken of , 



