Michigan Trees_ A Handbook of the Native and Most Important Introduced Species

British Butterflies_ Figures and Descriptions of Every Native Species

Seeds of Michigan Weeds Bulletin 260, Michigan State Agricultural College Experiment Station, Division of Botany, March, 1910

The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State

Address delivered by Hon. Henry H. Crapo, Governor of Michigan, before the Central Michigan Agricultural Society, at their Sheep-shearing Exhibition held at the Agricultural College Farm, on Thursday, May 24th, 1866

The University of Michigan