U. S. DEPARTMENT OF AGRICULTURE. 



FIFTH REPORT 



OF THE 



UNITED STATES 



ENTOMOLOGICAL COMMISSION, 



being a revised and enlarged edition of 

 Bulletin No. 7, 



ON 



INSECTS INJURIOUS TO FOREST AND SHADE TREES. 



BY 



ALPHEUS S. PACKARD, M. D., Ph. D. 



WITH WOOD-OUTS AO 38 PLATES. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE, 



18 9 0. 



