REICHERTS DISTILLATION PROCESS. 



41 



means of which a current of air was drawn through at the rate of 

 abont 4 to 6 bubbles per second. 



The distillate, before titration, was thoroughly cooled (to about 

 55° Fah.) and filtered through wet paper. Phenol-phthalein was 

 used as the indicator. 



SERIES I. 



These experiments were intended lo illustrate the effect of using 

 air not freed from carbon dioxide. The tube of the condenser did 

 not dip into liquid in the receiver. 



The acidity found beai'S no constant relation to the quantity of fat 

 used ; nor is any average increase shewn for increasing quantities of 

 fat used. 



The ai'bitrary volume of distillate collected (equal to the quantity 

 of sulphuric acid used, or to two-thirds of the total quantity of the 

 liquid in the distillation-flask) is more than that collected in Series 

 II., and less than that collected in Series III. 



SERIES II. 



In this series of experiments the air di'awn through the apparatus 

 was freed from carbon-dioxide by being washed through strong solu- 

 tion of caustic potash. 



