56 



there were about twice as many larvae in as near the lesions. It 

 would seem that these usually follow rather than precede the in- 

 fection. 



Woodpecker work was noted in about one-tenth of the oldest 

 lesions, and not at all in the youngest lesions, much less fre- 

 quently than beetle work. Ants were seldom found actually in 

 the lesions. 



It is expected that careful observations of this same tract next 

 year and later, will add much to the value of the present very 

 complete records, which it lias boon possible lo summarize only 

 briefly in this account. 



A good deal is known about this parasite; very much remains 

 to be learned. As far as our present knowledge goes, the prompt 

 stamping out of advance spots of infection, and the general cut- 

 ting off of hopelessly infected tracts, seem to be the only practi- 

 cable means of control. No one perhaps realizes more keenly 

 than the speaker the difficulties of finding infection and thor- 

 oughly removing it in sparsely settled tracts of large extent and 

 of little value for timber. I have had occasion this last summer 

 to be on the outskirts of the line of spread of this disease through 

 the State, and I have seen numbers of these advance spots. It 

 seems that if we can find these spots and remove the timber, Ave 

 will be doing much to check the advance of this disease. In this 

 State the fight is on, and it is the part of all good citizens to co- 

 operate in the work that is being done. (Applause). 



THE CHAIRMAN : Dr. Caroline Eumbold, who is in charge 

 of important research work at the laboratory of the University 

 of Pennsylvania, will present a paper in relation to medicinal 

 remedies for the chestnut tree bark disease. 



