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Phila. July 9, 1877 John Muir Esq San Francisco Cal. My dear Sir Allow me to thank you for your exceedingly interesting
article on the Post-Glacial History of the Sequoia just received. It is a most valuable contribution not only to Botany but
to the last chapter of Geological history. I see no escape for your reasonings, I wish I could see a hope that these trees
may escape the savaging hand of man Unless story legislative influence be exercised they are doom- ed I hope that Sir Joseph
Hooker Dr. Gray may extend their approaching visit as far as California that you may have the pleasure of showing them the
great