92 



daily manufacture of -200,000 Ibs. of beets, 30 gallons 

 of milk of lime at 20 B would be added. This is 

 well mixed whilst the temparature. of the juice is 

 rising ; when the whole is well mixed a small injec- 

 tion of carbonic acid is directed into it. When the 

 temperature has reached 131, the injection pipe for 

 the introduction of the carbonic acid is opened wide", 

 this injection produces a great commotion in tie 

 boiler, to such an extent that it would overflow, if 

 the man in charge did not stir it continually witi a 

 wooden rake, and throw in a little grease to sop 

 the effervescing It is on account of this eileres- 

 cence that the boilers are only two thirds filled. 



During this time the temperature slowly r.ses 

 up to 176, at which point the steam is shut off. 



The carbonic acid is still continued to be injected* 

 until a small quantity of the juice on bing 

 drawn out, rapidly settles and gives on its sur- 

 face a clear, limpid and slighty amber liquid. 



When at this point, the injection of acid is stoped 

 and the liquid is emptied into the decanting vesels 

 where the clear portion is gradually drawn off. 



This first operation has deprived the juice <f the 

 greater portion of the hurtful ingredients tha the 

 lime could eliminate, but to purify it as mujh as 

 possible a second operation is gone through, \4iich 

 this time is carried on at a higher temperajure. 

 The decanted juices are sent to the two last holers 

 fo undergo a second carbonatation or saturation, the 

 liquid being placed in one of these boilers 4 tyn- 



