204 BEET ROOT SUGAR. 



7th. A funnel and a filter, 

 8th. A skimming ladle. 



OF THE THERMOMETER AND AREOMETER. 



The areometer of Beaume should in all cases be us- 

 ed in preference to any other, The thermometer in 

 defacation, is useful in ascertaining the temperature, 

 and thus to know when to put in the agents which 

 produoe clarification. It should be frequently put in- 

 to the liquid while clarification is going on. 



The areometer should have a handle of wood, and 

 a case made of tin. When the syrup is to be weigh- 

 ed, it is drawn up in the tin case, holding it by the 

 handle. The syrup should always be at the same tem- 

 perature when examined, and it should be taken as it 

 exudes from the press, plunged by the aid of the tin 

 case in water, to reduce the temperature to 55 de- 

 grees of Fahrenheit. The specific gravity is dimin- 

 ished if weighed while it is boiling, and consequently 

 a difference is found more or less, of 4 degrees. The 

 specific gravity is diminished by the expansion of the 

 fluid by heat. 



The lime, which is used in the defacation of the sy- 

 rup, should be unslacked. It should be weighed 

 while in that state, slacked , and then water enough ad- 

 ded to bring it to the consistence of cream. A bin or 

 cistern is used for this purpose, which is- of a circular 

 shape, with a cover. The lime should be sifted very 

 fine, and all the lumps should be taken out. M. Du- 



