(un^- 



GUIDE 



THE STUDY OF INSECTS 



AND A TREATISE ON THOSE 



INJURIOUS AND BENEFICIAL TO OEOPS 



FOR THE USE OF 



COLLEGES, FARM-SCHOOLS, AND AGRICULTURISTS ^ 



BY I ' 



A. S. PACKARD, Jr., M.D. 



WITH FIFTEEN PLATES AND SIX HUNDKED AND SEVENTY WOOD-CUTS 



SEVENTH EDITION. 



NEW YORK 

 HENRY HOLT AND COMPANY 



BOSTON : ESTES & LAURIAT 

 iSSo 





