57 



EXERCISE XIX 



1. For use with the clarifier, weigh a can of milk and have the 

 temperature as near 60 F. as possible. Measure out 100 cc. of the 

 milk into a measuring cylinder, both before and after clarification. 

 Set these two cylinders aside and the next day compare the cream line 

 on the two samples. Also note if there is any sediment in the bottom 

 of either cylinder, and if so compare the amount. 



2. Run the milk through the clarifier and keep track of the time 

 required for the process. Note the kind and amount of sediment 

 on the inside of the bowl. 



3. Stain some of the sediment on a glass slide and examine it 

 under the high power microscope. Make a drawing of the field. 



4. Reclarify the same amount of milk and compare the amount 

 and kind of sediment with that obtained in the first clarification. 



5. Make a drawing showing the difference between the inner 

 device in a separator and a clarifier of the same make. 



