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BULLETIN 1, U. S. DEPARTMENT OF AGRICULTURE. 



existence and to have a full complement of officers, but not certifying 

 any milk at the time of reporting. The following table shows the 

 number of dairies certified by each commission : 



Dairies certified. 



Commissions. 



Dairies certified. 



Commissions. 



None 



1 







20 



19 



10 



4 



3 



5 



6 



10 



12 



20 



3 

 1 

 1 



3 



1 



4 



1 









Out of 63 commissions reporting as above, 20 had discontinued the 

 certification of milk. The smallest amount certified by any one com- 

 mission is 75 to 100 quarts a day, while the greatest amount which is 

 jDassed upon by a single commission is 10,752 quarts a day. A few 

 commissions certify cream as well as milk. Ninety-two certified 

 dairies answered the question blanks sent out, and they report the 

 total quantity of milk produced as 16,633 gallons a day. As there 

 are about 125 certified dairies in all, it seems probable that the total 

 production reaches 25,000 gallons. 



The 63 commissions answering the letter reported the certification 

 of 126 dairies. A former investigation (Bureau of Animal Industry 

 Bulletin 104) showed that on January 1, 1907, there were only about 

 6,000 gallons a day of certified milk produced; so that in five years 

 there has been an increase in the production of certified milk of about 

 300 per cent. 



INSPECTED MILK. 



Several of the medical milk commissions are supervising the pro- 

 duction of a special grade of milk which is called " inspected milk." 

 This milk does not conform to all the requirements for certified milk, 

 but is still of a high quality and much safer than the ordinary market 

 milk of most cities. It is usually demanded that the cows kept for 

 the production of this milk be free from tuberculosis and that the 

 bacterial count shall be under 100,000 to the cubic centimeter. This 

 milk sells for a less price than does certified milk, and is therefore 

 within the reach of a larger class of consumers. One commission 

 reports that it is inspecting 9 dairies in addition to those certified. 

 The total number of " inspected " dairies reported was 20. The 

 inspection of dairies seems to serve a double purpose, in that it not 

 only puts a clean milk, which is produced under medical supervision, 

 in the hands of the consumer at a reasonable price, but it also serves 

 as a school for dairymen who may contemplate at some future time 

 the production of certified milk. 



