1921.] rUBLIC DOCUMENT — No. 31. 29 a 



milk inspection laboratories. Reinspections on account of 

 repairs ordered will be necessary at nine places. 



Miscellaneous ]]^ork. — Considerable time is used in making 

 analyses of feedstuff's and dairy products sent in by citizens of 

 the State, and of samples in connection with feeding experi- 

 ments at the Experiment Station. Waters from wells or 

 springs used as family supplies are also examined. 



Considerable time has also been devoted to work not easily 

 reported in terms of statistics, such as giving advice or in- 

 formation, either verbally or through correspondence, relative 

 to feeding stuffs found in the Massachusetts markets, and to 

 the formulating of rations. While such work is more properly 

 an Extension function, an attempt is made to answer such 

 questions where the answer is found in the chemical work with 

 which we are directly concerned. 



Testing of Pure-bred Cows for Advanced Registry. — The super- 

 vision of advanced registry is taking an increasing amount of 

 time each year, and it is believed that it will be necessary very 

 soon to make other arrangements in order to care for the work 

 more adequately. Not less than nine and as many as sixteen 

 men have been employed in making the two-day monthly tests. 

 For the year ending Dec. 1, 1919, 4,150 two-day tests were 

 reported; for the year just past 5,820 were reported, — an 

 increase of 1,668 over the previous year. The number of cows 

 on yearly test increased in one year from 416 to 519; the 

 number of farms, from 58 to 72. 



