6 



to be issued a certificate to that effect ; and the certificate shall be 

 deemed to authorize the sale in this commonwealth, in compliance 

 with this act, of the brand of fertilizer for which the certificate is 

 issued up to and including the thirty-first day of December of the 

 year for which it is issued. 



Section 7. Every commercial fertilizer and 

 Collection and brand of commercial fertilizer sold or of- 

 analysis of samples fered or exposed for sale in this common- 

 and publication of wealth shall be subject to analysis by the di- 

 results. rector of the Massachusetts Agricultural Ex- 



periment Station or by his duly designated 

 deputy or deputies. And the said director is hereby authorized 

 and it is made his duty to make or cause to be made in each year 

 one or more analyses of every fertilizer and brand of fertilizer sold 

 or offered or exposed for sale in this commonwealth, and to collect 

 the annual analysis fee provided for by section five of this act. 

 The said director, his inspectors and deputies, are further author- 

 ized to enter upon any premises where any commercial fertilizer is 

 sold or offered or exposed for sale to ascertain if the provisions of 

 this act are complied with, and to take samples for analysis as pro- 

 vided for by this act. The analysis of all fertilizers shall be made 

 by the methods adopted by the Association of Official Agricultural 

 Chemists of North America, except that basic phosphatic slag may 

 be analyzed by the Wagner Method, so-called, until a method of 

 analysis therefor is adopted by said association. The said director 

 shall have the right to publish or cause to be published in reports, 

 bulletins, special circulars or otherwise, the results obtained by 

 said analyses, and in connection therewith shall, in each case, state 

 the cost of equivalent amoiuits of nitrogen, phosphoric acid and 

 potash in unmixed materials when bought for cash on the market 

 at retail. Said reports, bulletins, circulars, or other publications 

 shall also contain such additional information in relation to the 

 character, composition, value and use of the fertilizers analyzed 

 as the said director in his discretion may see fit to include. The 

 said director may at any time make or cause to be made for any 

 person a free analysis of any commercial fertilizer or brand of 

 commercial fertilizer sold or offered or exposed for sale in this com- 

 monwealth, but he shall not be obliged to make such free analysis 

 or to cause the same to be made, unless the samples therefor are 

 taken and submitted in accordance with the rules and regulations 

 which may be prescribed by him. The results of any analysis made 

 in accordance with the provisions of this act, except a free analysis 

 as aforesaid, shall be sent by the director to the person named in 

 the printed label of the fertilizer analyzed at least fifteen days be- 

 fore any publication thereof. 



