Charter Members of the Iowa Academy of Science

Two charter members of the Academy, Dr. Samuel Calvin and Professor J. E. Todd, were primarily geologists, both, however, had such good training in the old natural history courses given in our colleges forty and fifty years ago, that they became all-round naturalists. In the early days of teaching science in Iowa, when they did their pioneer work, they had the whole range of scientific instruction along the lines of natural history and natural science. In late years Dr. Calvin was primarily a geologist, never, however, losing interest in natural history. Several biographical sketches of the late Dr. Calvin have been published, as that by Dr. G. F. Kay