States Public Health Service, who has been in England for two years assisting British officials at Liverpool and other ports in the examination of emigrants. He said that fully 25 per cent of the emigrants leaving Liverpool while he was there had to be what he termed "disinfested." Those who came from Southern Europe were clean because they had passed through so many disinfecting stations. Return to the U.S., physician, nutritionist and conservationist Robinson and his family moved to the United States to stay in 1926, locating to St. Louis, Michigan in September of that year. He was drawn to the small city because of its natural mineral-rich water, which he believed would play an important role in his naturopathic and holistic medical practice. A frequent author on medical matters, he opened the Robinson Clinic in St. Louis in 1935, where he stressed a natural diet, cleansing, exercise and weight control. He cited the increased use of refined sugar as a particular threat to good health, an idea scoffed at during his lifetime and decades later, but an observation supported by an exhaustive study published in the Journal of the American Medical Association in 2014 and reported by the Harvard Heart Letter that year and in 2016. Warnings against the use of DDT In 1947, Robinson became one of the earliest to warn of the dangers of using the pesticide DDT in agriculture. This was a radical view at the time, especially in St. Louis, Michigan. Beginning in 1944, DDT had been researched and manufactured in St. Louis by the Michigan Chemical Corporation, later purchased by Velsicol Chemical Corporation. DDT had become an important part of the local economy. Citing research performed by Michigan State University in 1946, Robinson, a past president of the local Conservation Club, opined that: ... perhaps the greatest danger from D.D.T. is that its extensive use in farm areas is most likely to upset the natural balances, not only killing beneficial insects in great number but by bringing about the death of fish, birds, and other forms of wild life either by their feeding on insects killed by D.D.T. or directly by ingesting the poison. Some 15 years passed before the dangers of DDT were the subject of Rachel Carson's 1962 landmark book, Silent Spring. DDT's use in agriculture was banned worldwide in the 1970s and 1980s. The Gratiot County Landfill just outside St. Louis,