EXPERIMENT STATION EErORT. 



547 



Under my instructions, Mr. Dickerson went to Stanley, July 

 Sd, armed with a powerful Zeiss stereo-field glass, and reports as 

 follows: "I drove directly to the greenhouse, looked carefully 

 iiround it in all directions, in the lots and woods which surround 

 it. I also followed out the various roads for a considerable dis- 

 tance, but nowliere could I see any signs of caterpillar injury— 

 in fact, the vegetation and trees seemed imusually free from 

 infestation." 



On August 6th Mr. Dickerson again visited the locality, and 

 was then accompanied by Mr. Grossbeck. His report continues : 

 ''This time, after looking carefully around the gTeenhouse, we 

 drove along the various roads passing by or near it, and went much 

 further than on the first visit. Mr. Grossbeck kept a close lookout 



Fig. 10. 



Yellow-necked Caterpillar (a) and its parent moth (b) ; eggs {<■), natural size and (d) 

 enlarged. After Riley. 



on the trees and bushes on one side of the road and in this way 

 wc covered the ground very completely. The results were similar 

 to those of the first visit; the trees. were exceptionally free from 

 caterpillar attack and no sigiis of the gypsy moth were observed." 

 It should be said that for a space of several hundred feet from 

 the greenhouse the ground was covered, on foot, in eveiw direction, 

 and the driving was a slow walk, with frequent stops to investigate 

 suspicious appearances. 



July 27th, Mr. Kirkland again communicated with the office, 

 enclosing a clipping from the Springfield, Mass., 'Ttepublican," 

 which recorded the appearance of the gypsy moth in Trenton. A 

 similar note appeared in the Boston "Globe" of July 22d, and 

 this was furnished by the Associated Press, through the New York 

 "World." 



