The local health authority of any city, borough or town may procure, from any dealer in provisions, groceries, medicines or other articles for human consumption, samples of such articles and cause the same to be analyzed by one of the state chemists and if, on such analysis, it is found that the article analyzed is adulterated with a deleterious or foreign ingredient, other than is represented verbally and in a conspicuous label by the seller, the chemist making the analysis shall issue his certificate setting forth the kind and quantity, as near as may be, of deleterious and foreign ingredients found in the article analyzed. The director of health causing such analysis to be made shall cause such certificate to be published in some paper published in the city, borough or town, or one nearest thereto, where the article analyzed was obtained, for such length of time as he thinks necessary, and the cost of analysis and the cost of the publication of the certificate shall be paid by the person or firm from whom the article analyzed was obtained. If such person or firm so elects, he or it may annex to such certificate an affidavit setting forth from whom the article analyzed was purchased. In each case where an analysis has been made according to the provisions of this section and the article analyzed has been found pure and free from foreign ingredients, the cost of the analysis shall be paid by the city, borough or town whose director of health caused such analysis to be made.