Bui. 87, Bureau of Entomology, U. S. Dept. of Agriculture. 



Plate XII. 



View Showing Contrast Between Trees Protected from the Gipsy and Brown- 

 tail Moths and those Unprotected. (Original.) 



[The tree at the left is an oak defoliated by brown-tail caterpillars and containing many of their 



webs at tips of branches.] 



