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ANY PERSON 
y this book will confer a favor by pasting the following 
addressed label on the outside and depositing 
it in the nearest post office. 
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Department of the Interior, 
U. S. GEOLOGICAL SURVEY. 
OFFICIAL BUSINESS. 
PENALTY FOR PRIVATE USE, $300. 
RECTOR OF THE 
GEOLOGICAL SURVEY, 
WASHINGTON, D. C. 
