THE SPRUCE INVESTIGATION. 



261 



Fig. XXXI. Galls and deformed twigs of the spruce gall louse on black spruce: 

 also black spruce coues. 



large as well as small trees near Cranesville, Preston county, in 

 1894. 1 have seen it in different sections of the spruce forest 

 from Tucker toPocahontas counties, and also on Norway spruce 

 in Morgantown. 



