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John Muir
14
naturalist
14
writing
California
12
author
12
correspondence
12
correspondent
12
epistle
12
exchange of letters
12
letters
12
mail
12
message
12
missive
12
notes
12
post
12
Environmentalist
2
annotation
2
conservation
2
history
2
journal articles
2
national parks
2
pamphlets
2
speeches
2
travel
2
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