FOUR GRADES OF MILK AS INDICATED 

 BY THE MILK SEDIMENT TEST. ONE 

 PINT OF MILK WAS POURED THROUGH 



EACH OF THESE DISCS OF ABSORBENT 

 COTTON WHICH WERE PERFECTLY 



WHITE AT FIRST. THEY SHOW FOUR 

 GRADES OF MILK AS FOLLOWS: UP- 

 PER LEFT, PERFECTL Y CLEAN, UPPER 

 RIGHT, SLIGHTLY DIRTY, LOWER 

 LEFT, DIRTY, LOWER RIGHT, VERY 

 DIRTY 



IT IS IMPOSSIBLE TO MAKE 

 GOOD MILK WITH CHEAP 

 LABOR AND CHEAP METH- 

 ODS. IT IS IMPOSSIBLE TO 

 MAKE BACTERIOLOGISTS OF 

 SUCH MEN 



f U. P. Hood & Sons. 



ONE OF THE 

 THINGS THAT 

 MAY HAPPEN 

 TO MILK DUR- 

 ING THE EARLY 

 HOURS OF THE 

 MORNING. IN- 

 SIST UPON THE 

 DRIVER RING- 

 ING THE DOOR- 

 BELL ; PLACE 

 THE MILK BOT- 

 TLE IN THE RE- 

 FRIGERATOR AT 

 ONCE 



