No. 4.] 



THE BROWN-TAIL MOTH. 



387 



become distributed. To this end, late in December, 1898, 

 several employees were sent on trips of inspection through 

 towns bordering on the known infested region. As a result, 

 the infested area was found to be nearly double that which 

 had been known. In brief, the moth was found to be dis"- 

 seminated from Gloucester on the north to Scituate on the 

 south, and as far west as Waltham. In November and 

 December, 1899, an examination of the towns lying outside 

 of the region known to be infested in 1898 gave even more 

 discouragino- results. The moth is now known to be dis- 

 seminated throughout the north shore district, above Cape 

 Ann, and even over the State line in New Hampshire. A 

 tabulation by years of the towns infested is given below : — 



The map given in another part of this report makes clearer 

 than words the exact situation. Should the brown-tail moth 

 continue its present rate of spread, its dissemination over the 



