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HOW TO KNOW 

 THE INSECTS 



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An illustrated key to the more common tamilies 

 of insects, with suggestions for collecting, mounting 

 and studying them. 



By 



H. E. JAQUES 



Professor of Biology 



Iowa Wesleyan College 



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Published by the Author 

 Mt. Pleasant, Iowa 



Planographed by John S. Swift Co. .Inc. St. Louis. Chicago. New York, Cincinnati 



(Printed in U.S.A. ) 



