A Comparative Study of the Vegetation of Swamp, Clay, and Sandstone Areas in Western Wisconsin, Southeastern Minnesota, Northeastern, Central, and Southeastern Iowa - Louis Hermann Pammel - Bog

This scientific study, first published in 1911, provides a detailed comparison of the vegetation in different types of wetland habitats in the upper Midwest. The study includes extensive data on the botany and ecology of swamp clay and sandstone areas and offers insights into the impact of human activity on these fragile ecosystems. This volume is an important resource for anyone interested in the natural history of the Midwest.
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