John Muir, the ‘father of the National Parks’, would read it, as would Gifford Pinchot, the first chief of the United States Forestry Service, who would call it ‘epoch-making’. Marsh’s observations on deforestation in Man and Nature led to the passage of the 1873 Timber Culture Act which encouraged settlers on the Great Plains to plant trees. It also prepared the ground for the protection of America’s forests, leading to the 1891 Forest Reserves Act which took much of its wording from the pages of Marsh’s book and from Humboldt’s earlier ideas.
Yep
