The Secretary of Agriculture is hereby authorized to purchase from time to time in open market samples of spirits of turpentine and of anything offered for sale as such for the purpose of analysis, classification, or grading and of detecting any violation of this chapter. He shall report to the Department of Justice for appropriate action any violation of this chapter coming to his knowledge. He is also authorized to publish from time to time results of any analysis, classification, or grading of spirits of turpentine and of anything offered for sale as such made by him under any provision of this chapter.