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All letters, to ensure prompt attention, should be addressed to the Firm. CHICAGO OFFICE, J78vj88 WABASH AVENUE. BOSTON
OFFICE, 4 PARK STREET. NEW YORK OFFICE, 85 FIFTH AVENUE HOUGHTON, MIFFLIN AND COMPANY, PUBLISHERS. Boston,July 29,
1901 John Muir, Esq., Martinez, Calif. Dear Mr. Muir: We enclose herewith duplicate contracts for the publication of
your book on Our National Parks , and have made the royalty 10 on the first 2000 copies, and 15 on all sold over and above
that number, which we trust will be agreeable to you. If so, kindly return one of them to us with your signature, and keep
the other. Yours very truly, Houghton, Mifflin Co. 02879