122 Observations on the Wheat -Moth. 



With respect to the extent of country over which 

 they have spread, I can say but little, especially as to 

 what regards their range southward, but I believe 

 that we feel their influence more sensibly in this 

 place, than on either side of us. Northward, or more 

 strictly north-east, of Philadelphia, they seem to in- 

 crease gradually as they approach to By berry*. 

 North-eastward of us, they are not so numerous, but 

 they are increasing, and progressing on the same 

 course. Last season, they were bounded on the north 

 by Neshamany-Creekt (a very few instances except- 

 ed). This season, they have been considerably trou- 

 blesome in the township of Middletown, especially in 

 that part within the vicinity of Mitchell's-Mills. 



The observation of their being more numerous in 

 the neighbourhood of mills generally holds good. 

 Hence, the prevailing idea of the spread of these in- 

 sects by the medium of wheat, brought from the 

 southward. 



Concerning the habits of the moth I know still less 

 than of its range over the country. Some have sup- 

 posed, that the grain which has been raised upon a 

 sandy soil, suffered most. Indeed, the opinion would 

 be favoured by the total destruction of Mr. Miles's 

 grain, which grew upon such a soil, were it not that 

 oiher grain, from a similar soil, was but little affected. 



* This township is about fourteen miles to the north-cast of 

 Philadelphia. Editor. 



t A branch of the Delaware, into which it empties itself, at the 

 distance of about fifteen miles above Philadelphia. Editor. 



