Observations on Insects. 131 



perfect as he can : he will, therefore, thankfully re- 

 ceive any facts or observations, relative to any of the 

 insects mentioned, or alluded to, in the preceding 

 list. As it is his wish to render the paper of practi- 

 cal utility, he solicits, in an especial manner, the com- 

 munication of such facts, experiments, or observa- 

 tions, as may tend to throw any light upon the best 

 means of preventing, or of curing, the evils inflicted 

 by these insects. Much important information of 

 this kind is in the possession of the intelligent far- 

 mers, gardeners, and other persons, in various parts 

 of the United-States. It is important, that it should 

 be communicated to the public. 



Whatever, relative to these subjects, may be com- 

 municated to the Editor of this Journal, will be inter- 

 woven with the memoir, already alluded to, which 

 will be published by the American Philosophical So- 

 ciety, either as a part of one of the volumes of their 

 Transactions, or in a detached form. 



Editor. 



February 22d, 1805. 



XXI. Conjectures relative to the Scite of Bristol, in 

 Pennsylvania. Communicated to the Editor, by 

 Mr. William Bartram. 



IN perusing the First Part of your Medical 

 and Physical Journal, I particularly noticed, in Dr. 

 Gregg's Topographical and Medical Sketch of Bristol, 



