excepting the item as to the number of pounds, for every brand 

 of feeding stuff to be sold or offered, exposed or kept for sale 

 or to be distributed in this eomm on wealth. But no agent or 

 other person shall be obliged to file a copy of the tag or label 

 of any brand of feeding stuff, a copy of which has been filed 

 by the manufacturer or importer of such brand and for which 

 a certificate of registration has been issued. No feeding stuff or 

 brand of feeding stuff shall be sold or offered, exposed or kept 

 for sale or distributed in this commionwealth until the tag or 

 label therefor has been registered by the director of the Massa- 

 chusetts agricultural experiment station, or his authorized deputy, 

 and a certificate of such registration has been issued by him. 



Section 5. A certified copy of the 



Time of tag or label required by this act shall 



Registration be filed with the director of the 



Massachusetts agricultural experi- 

 ment station, or his authorized deputy, for registration prior to 

 the first day of September in each year for every brand of com- 

 mercial feeding stuff to be sold or offered, exposed or kept for 

 sale or to be distributed in this commonwealth during the year 

 Ijcginning with said first day of September. The said director 

 or his authorized deputy may thereafter permit a manufacturer, 

 importer or other person to file a copy of the tag or label of a 

 brand of feeding stuff, and may register the same for said year 

 in accordance with the rules and regulations which may be pre- 

 scribed by the said director. 



Section 6. When the certified copy 

 Director to Issue of the tag or label of any brand of 



Certificates Authorizing commercial feeding -stuff has been 

 Sale After Feeding Stuffs filed as provided by this act, the 

 Are Registered director of the Massachusetts agri- 



cultural experiment station, or his 

 authorized deputy, shall register .such tag or label if he finds the 

 same to be in accordance with the requirements of this act, and 

 shall issue, or cause to be issued, a certificate of such registration, 

 and the said certificate shall be deemed to authorize the sale in 

 this commonwealth, in complia,nce with this act, of the brand of 

 feeding stuff for which the certificate is issued, up to and including 

 the thirty-first day of August of the year for which it is issued. 



