Jackson, Mich., Aug. 28. 1907.
To the Editor:
—Enclosed find our scheme for obtaining pure milk, which is self-explanatory. As you will notice, our plan is somewhat different from the usual one of certifying the product from only one dairy. Any dairyman who will comply with our rules and furnish a product meeting standard requirements as to bacterial content and food elements may have our certification. The scheme has already secured good results.[The work to which Dr. Parnall calls attention is being done through a committee appointed by the Jackson County (Mich.) Medical Society. A circular and a card of application for certification are sent to the dairymen. The former embodies the most important recommendations and measures for producing clean milk, requiring the dairyman to agree to inspection by the committee and to abide by its rules and regulations. Any case of communicable disease occurring in the household of