Penfyfaania, Philadelphia. 93 



foot ; for they fay, that where a European had 

 walked, there this plant grew in his foot- 

 fteps. 



THE Chenopodium album* or Goofefoot with fi> 

 nuated leaves, grows in plenty in the gardens. 

 But it is more fcarce near the houfes, in the 

 ftreets, on dunghills, and corn-fields. This 

 feems to fhew, that it is not a native of America, 

 but has been brought over amongft other feeds 

 from Europe. In the fame manner it is thought 

 that the Tanfey, (Tanacetum vulgare Linn.) which 

 grows here and there in the hedges, on the roads, 

 and near houfes, was produced from European, 

 feeds. 



THE common vervain, with blue flowers, or 

 verbena officinalis, was Ihewn to me by Mr. Bar- 

 tram, not far from his houfe, in a little plain near 

 Philadelphia. It was the only place where he 

 had found it in America. And for this reafon I 

 fuppofe it was likewife fown here amongft other 

 European feeds. 



MR. Ear tram was at this time building a houfe 

 in Philadelphia, and had funk a cellar to a con- 

 fiderable depth, the foil of which was thrown 

 out. I here obferved the following ftrata : The 

 upper loofe foil was only half a foot deep, and of 

 a dark brown colour. Under it was a ftratum of 

 clay, fo much blended with fand, that it was in 

 greater quantity than the clay itfelf > and this 

 ftratum was eight feet deep. Thefe were both 

 brick coloured. The next ftratum confifted of 

 little pebbles mixed with a coarfe fand. The 

 ftones confifted either of a ' clear > or of a dark 



