SOME PHYSICO-CHEMICAL MEASUREMENTS ON MILK. 



191 



following table was drawn up, showing the weather con- 

 ditions on the days the samples were taken, and the 

 subsequent percentage decrease in the total solids in 

 twenty-four hours. 



Table XL 

 February. 1913. Weather conditions at 1230. % decrease of T.S. 

 2 slight showers, S.E. wind, 8 miles per hour — 



3 



cloudy, 



S.E. 



99 



8 



5*27 



4 



fine, 



N.E. 



99 



20 



1*23 



5 



fine, squally 



S.E. 



99 



15 



3*20 



9 



slight showers 



;, S.E. 



99 



8 



, — 



10 



cloudy and squally S. 



»» 



25 



5*60 



11 



showery all day, S. 



99 



15 



2*93 



12 



cloudy, 



S. 



99 



17 



2*03 



13 



fine, gusty, 



N.E. 



99 



16 



3*25 



16 



fine, 



E. 



99 



10 



9 



17 



fine, 



N.E. 



99 



11 



4*15 



18 



fine, hot 100'5°F. W. 



99 



13 



9 



19 



fine, 



E. 



99 



15 



5-08 



20 



cloudy, 



S.E. 



99 



18 



9 



21 



overcast, 



E. 



99 



7 



3*65 



23 



fine, 





99 





, — 



24 



fine, sultry, 



E. 



99 



15 



4*70 



26 



fine, 



N.E. 



99 



18 



9 



27 



fine, squally 



N.E. 



99 



19 



5*05 



All the samples were taken at 12*30 p.m., the shed in 

 which the cows were milked ran north and south, the only 

 door being at the southern end. In all cases where a large 

 decrease was noticed, the weather conditions were such 

 that a large amount of dust could reasonably be expected 

 to be present in the air, such conditions being a high wind 

 or when no rain had fallen for some time, etc.; on the other 

 hand when it had been raining the decomposition was, in 

 in all cases, small. The above table should make clear the 



