John Meir's writing is informing the reader about the destroying of the red wood trees, because he was walking through the forest because he is a great wander, and he noticed that people were chopping down red wood trees and turning it into lumber.
John Meir can be see'n as a naturalist because he is trying to save the red wood trees, another piece of evidence of this is that John Meir wondered through the forest because he enjoyed the nature.