486 



SORGHUM. 



I'lute XLVJil. 



No. 1. Thermometer. 

 No. 2. Saccharouaeter. 



No. ?,. Test cup for using saccharometer. 

 No. 4. Proof glass. 



The above represents the thermometer, saccharometer, etc., which 

 are generally used for the determination of temperature and spe- 

 cific gravity. A better form of thermometer than above repre- 

 sented is a plain glass stem, with bulb containing the mercury and the 

 scale engraved upon the glass. 



Comparison of different Hydrometers. 

 It has been thought best to here append a table Avhich shall show 

 the comparative values of the different scales. 1+ is always preferable 

 to use a hydrometer which shows the actual specific gravity of the 

 juice, but those who have either the Beaume or Brix hydrometers can, 

 by use of this table, make them answer every purpose. It will be 

 noticed that the specific gravity 1.066, which was recommended as the 

 proper indication that the juice was in a workable condition, corre- 

 sponds exactly with 16° Brix and 9° Beaume. 



