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John Muir
naturalist
Environmentalist
4
conservation
4
correspondence
4
history
4
letters
4
national parks
4
travel
4
writing
4
California
2
annotation
2
author
2
correspondent
2
epistle
2
exchange of letters
2
journal articles
2
mail
2
message
2
missive
2
notes
2
pamphlets
2
post
2
speeches
2
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