Subject
Wilderness areas
8
Authors, American
6
Natural history
5
Homes and haunts
4
Solitude
4
Walden Woods (Mass.) Social life and customs
3
West (U.S.) Description and travel
3
Civil disobedience
2
West (U.S.) Intellectual life
2
Conservationists
1
Foresters
1
Forests and forestry History
1
History
1
Officials and employees
1
Travel
1
West (U.S.)
1
Wilderness areas History
1
Women artists
1
Women authors, American
1
Women naturalists
1