One of the interesting regions in the state of Michigan, from the botanical point of view, is the country near the shores of Lake Huron and Saginaw Bay, in Huron County. In this area, at the tip of the "thumb" of the Lower Peninsula of Michigan, the Federated Women’s Clubs of Huron County have established a 120-acre nature sanctuary which they have called "A Wilderness Arboretum." Co-operating with Mrs. Fred M. Cross, of Bad Axe, in arranging for me to catalog the Pteridopytes and Spermatophytes of the tract were Everett J. Soop, Director the of the Extension Service of the University of Michigan, and Stanley A. Cain, chairman of the Department of Conservation in the School of Natural Resources of the University. Mrs. Cross hopes to have the complete list of the flora printed in popular form for distribution by the Women’s Clubs in their nature education work with schools and clubs in the "thumb" area.