Bui. 91, Bureau of Entomology, U. S. Dept. of 



Agricult 



ure. 





Plate II. 



■ ^H v 



If 



^^ 



. • 





« Hn 



• 



J* ■ 



u 



Si 



j 



11 







- - 





T^WH^ftji 



i | 



irmI^ " 





"'*.•*'"• 





liA 'H 





— ~j>, 



:-!^jit«»«K ' - 





.' 



Fig. 1.— View of Parasite Laboratory at North Sauqus, Mass. (Original.) 





Fig. 2.— View of Parasite Laboratory at Melrose Highlands, Mass. (Original.) 



