THE ANALYSIS OF MILK 23 



of the fat column is adjusted to one of the longer lines 

 indicating percentages of fat, and the point on the scale 

 where the lowest part of the curved upper limit stands 



FIG. 1 6. Reading Bottles. 



is read off ; a convenient method of reading is to count 

 first the number of whole percentages of fat (indi- 

 cated by the longer lines), and then the number of 

 small lines above this, each small line indicating o.i 

 per cent, of fat. Fig. 17 shows a sample reading 3.6 

 per cent, of fat ; it is quite easy to read to half a small 

 division or 0.05 per cent. 



