122 EXPERBIENT STATION. [Jan. 



station, or by liis duly dosijiiiated deputy, sliall tlioroaftor manipulate 

 in this coimuon weal til any centrifugal machine for the purposes afore- 

 said. 



Sectiox 4. The director of the Massachusetts agTicultural experi- 

 ment station and his duly designated deputy are hereby authorized to 

 issue certificates of competency to such persons desiring to manipulate 

 the Babcock or other centrifugal machine as, in the opinion of the 

 director or bis depiitj', are competent to manipulate said machines. Tlie 

 said director or his deputy may make and enforce rules governing appli- 

 cations for such certificates and the granting thereof and may, in his 

 discretion, revoke the authority of any holder of a certificate who, in 

 the opinion of the director or of his deputy, or of an insj^eetor of the 

 said director, is not correctly manii^nlating any centrifugal machine 

 as aforesaid, or is using dirty or othci'wise iinsatisfactory glassware or 

 utensils. 



Section 5. It shall be the duty of the director of the Massachusetts 

 agi'icultural experiment station, and he is hereby authorized, to test or 

 cause to be tested all bottles, pipettes and otlier measuring glasses or 

 utensils submitted to him as provided in section one, to inspect or cause 

 to be inspected at least once eacli year everj- Babcock or otlier centrif- 

 ugal machine used in this commonwealth by an inspector of milk or 

 cream, or by any person in anj^ milk inspection laboratory, for purposes 

 of inspection, or by any person in any milk depot, creamery, cheese 

 factory, condensed milk factory, or other place for determining the 

 composition or value of milk or cream as a basis for payment in buying 

 or selling, and to collect or cause to be collected for the use of said 

 station the fees or actual cost of tests and insiDections pi'ovided for in 

 this act. The said diiector, his inspectors and deputies are further 

 authorized to enter upon any itemises in this commonwealth where any 

 centrifugal machine is used as aforesaid to inspect the same and to as- 

 certain if the provisions of this act are complied with. 



Section C. Any person hindering or obstructing the director of the 

 Massacliusetts agricultural exjieriment station, or any inspector or dep- 

 uty of the said director, in the discharge of the authority or duty im- 

 posed upon him or them by any provision of this act, and any pei-son 

 violating any of the provisions of sections one, two and three of this act 

 shall be punished by a fine of not less than fifteen and not more than 

 fifty dollars for each offense. 



Section 7. It shall be the duty of the director of the Massachusetts 

 a^gi'icultural experiment station to see that the provisions of this act are 

 complied with., and he may in his discretion prosecute or cause to .be 

 prosecuted any person violating any provision of this act. - But this act 

 shall not be construed to affect any persons using any centrifugal or 

 other machine or test in determining the composition or value of milk or 

 cream when such detorminaiinn is made for the information of such 

 persons only, and not for purjioses of insi>ection, or as a basis for pay- 

 ment in buying or selling. 



