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In memory of Roger W. Jeanloz, a pioneer glycobiologist (1917-2007).

Roger William Jeanloz, who passed away on September 12, 2007, a few weeks short of his 90th birthday, was among the earliest pioneers in the field of Glycobiology. He made seminal contributions to the subject and trained a number of leaders in the field. Among others, he was one of the prime organizers in the 1950s of the Glycosaminoglycans, Glycoproteins and Glycolipid Group (known as the 4Gs group), later named the