poration employing him, and if the required improvement has not 

 been made, the director is empowered to notify in writing said 

 operator, or the person, firm or corporation employing him, that his 

 certificate of competency is revoked. In case of any subsequent 

 violation the said director may revoke the certificate of competency 

 without giving the notice aforesaid. 



Sec. 5. It shall be the duty of the director of the Massachusetts^ 

 Experiment Station to test farmers" samples of milk or cream by the 

 Babcock method, and report the results of each test, the cost of such 

 test to be paid by the farmer. The director shall also test by the 

 Babcock method, samples of milk or cream sent from any creamery, 

 factory or milk depot in the state by its proper representative, the 

 actual cost of such tests to be borne by the sender. The experiment 

 station shall publish and distribute such information concerning the 

 Babcock test, and the taking and forwarding of samples, as it deems 

 necessary under this section. 



Sec. 6. Any person violating any provision of this act shall 

 be fined not more than twenty-five dollars for the first offence and 

 not more than fifty dollars for each subsequent offence. 



Sec. 7, This act shall take effect on the first day of July in 

 the year nineteen hundred and one. {Approved March 26, igoi.) 



2. THE BABCOCK TEST." 



P. H. Smith. 



Attention is called to the following suggestions in regard to the 

 manipulation of the Babcock test the slighting of which, in the haste 

 of commercial work, will tend toward inaccuracy. 



Composite samples of milk and cream should be 

 Preservation preserved in clean, wide-mouthed, tightly stoppered 

 of Samples, bottles ; they should be well mixed after each addi- 

 tion to insure a uniform distribution of the preserv- 

 ative and its thorough incorporation with the cream. The samples 

 should be kept in a cool place out of the sun. Ground glass stop- 

 pered bottles are to be preferred but owing to the expense they are 



-Massachusetts substituted for Hatch. See Chapter 66, Acts and Resolves of Massachu- 

 setts for 1907. 

 ^Revision of an article by E. B. Holland published in a special bulletin in 1903. 



