12 TiMEHRl. 



any other suitable type that register corre6lly without 

 interfering with the usual working condition of the liquor 

 in passing from one vessel to the other. 



These are simply suggestions admitting of fuller con- 

 sideration and doubtless open to improvement, but if 

 carried out they would render visible the internal work 

 of an evaporator without interfering with its normal 

 working conditions or thwarting the work of the fa6lory. 



