Bibliography of North American Minor Natural History Serials in the University of Michigan Libraries is a significant contribution to the reference literature of natural sciences. Written by Margaret Hanselman Underwood, this comprehensive bibliography captures an extensive range of minor serial publications on natural history housed within the University of Michigan libraries. These publications, often short-lived and of limited circulation, hold crucial records of plant and animal distributions before the transformations brought by modern civilization. Underwood's meticulous research, guided by her time at the University of Michigan Museums library, is both extensive and detailed. The bibliography focuses on North American serials, excluding most university publications and many State Conservation and National Park releases.