UNlTliD STATES GEOLOGICAL SURVEY OE THE TERRITORIES. .^tZu^ ^ /f^ /f^ 



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MONOGRAPH 



(iEOMETRll) MOTHS Oil PllAL/ENlDiE 



UNITED STATES 



By a. S/ PACKARD, Jr., M. D. 



WASHINGTON: 



U O V K K N M E N T PRINTING OFFICE. 



