Penfylvania, Philadelphia. no 



fame manner it is thought that the Hanfcy 

 (Tanacetum vulgar e, Linn.) which grows 

 here and there in the hedges, on the roads, 

 and near houfes, was produced from European 

 feeds "■ °* k fI£ '-li3 h 



The common vervain, with blue flowers, 

 or verbena officinalis, was (hewn to me by 

 Mr. Bartram, not far from his houfe in a 

 little plain near Philadelphia. It was the 

 only place where he had found it in Ame- 

 rica. And for this reafon I fuppofe it was 

 likewife fown here amongft other European 

 feeds. 



Mr. Bartram was at this time building 

 a houfe in Philadelphia, and had funk a 

 cellar to a confiderable 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 itfeli ; 

 and this ftratum was eight feet deep. Thefe 

 were both brick coloured. The next ftra- 

 tum confifted of little pebbles mixed with 

 a coarfe fand. The ftones confifted either 

 of a clear, or of a dark Quartz ;* they were 



H 4 quite 



\B[\ BlO | 3lfiT 



* Quartzum hyalinum, Linn. Syft. nat. 3. p. 65. 

 HhtartzumfeUdumpellucMum, Walkrii Miner. 91. 



