When I think of Jack my mind whirls back through half a century to our first meeting at Cornell University, where Jack held a professorship. Then there was our year bridging 1964 and 1965 when, together with our families, we both took a year's sabbatical leave at the Italian Institute of Hydrobiology in Verbania-Pallanza, located on beautiful Lago Maggiore. These were the days of Vollenweider, Bonomi, and the Tonollis. In those days the Institute had become almost a think tank for young aspiring limnologists. I also recall Jack's eminence at the Canadian International Society of Limnology (SIL) meeting, and our particularly exciting post congress trip to Lake Baikal during the first SIL meeting to be held in Russia. Then there were our joint lectures in Barcelona for the very distinguished ecologist/limnologist and oceanographer, Ramon Margalef. And last but certainly not least, were our joint assaults on the casinos of Europe,...

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