1Presented at the Tenth Annual Meeting of the Dairy Products Improvement Institute, Inc., Hotel Statler, New York, New York, on February 14, 1957.
Mr. Tiedeman is Executive Director of the National Sanitation Foundation Testing Laboratory and Resident Lecturer at the School of Public Health of the University of Michigan. Before going to Ann Arbor he completed twenty-five years with the New York State Department of Health where he was in charge of the milk sanitation program. In 1955 he served the World Health Organization as Chairman of its Expert Committee on Food Hygiene. For many years Mr. Tiedeman was secretary of the New York State Association of Milk Sanitarians and is a past president of the International Association of Milk and Food Sanitarians.