200 



THE EAEL OF BEEKELEY ON SOME 



. A modification of the method was adopted in which steam, generated in a boiler A 

 (see fig. 6), is forced through a tube B and delivered at the bottom of the large test- 

 tube C, which contains the solution. The test-tube is immersed in an oil bath D 



Thermometers. 



Platinum wire 

 for pulling off- 

 filter 



Stirrer. - 





Fig. 6. 



maintained at a temperature close to that of the boiling-point of the saturated 

 solution, the oil in the bath being vigorously stirred by a stirrer driven from the 

 main laboratory shafting. When the temperature of the oil bath was below the 

 boiling-point, salt dissolved ; when above, salt was thrown out of solution. By care- 



