He argued against banning the pesticide, noting that it had saved countless lives in poor countries as a cheap but effective way to kill malarial mosquitoes. After receiving his Ph.D. in biochemistry from the University of Toronto in 1933, he moved to California, where he had been drawn by the writings of Mark Twain and Bret Harte. He also shared a stake in the isolation of pantothenic acid and proving its essential nutrient role in chicks. In 1942, Jukes joined Lederle Laboratories, where he directed the section on nutrition and physiology research until 1959. Mass. A son, Kenneth Hughes, died several years ago.
Jukes also is survived by seven grandchildren.
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