142 September 1748.- 



obferved, that trees and plants decreafed in 

 proportion as they were brought further to 

 the Norths as Catejby pretends ? He an- 

 fwered, that the queftion mould be more 

 limited, and then his opinion would prove 

 the true one. There are fome trees which 

 grow better in fouthern countries, and be- 

 come lefs as you advance to the north. 

 Their feeds or berries are fometimes brought 

 into colder climates by birds and by other 

 accidents. They gradually decreafe in 

 growth, till at laft they will not grow at 

 all. On the other hand, there are other 

 trees and herbs which the wife Creator def- 

 tined for the northern countries, and they 

 grow there to an amazing fize. But thd 

 further they are tranfplanted to the fouth, 

 the lefs they grow ; till at laft they dege- 

 nerate fo much as not to be able to grow 

 at all. Other plants love a temperate cli- n0 

 mate, and if they be carried either fouth 

 or north, they will not fucceed well, but 

 always decreafe. Thus for example Pen- 

 fyhania contains fome trees which grow 

 exceedingly well, but always decreafe in 

 proportion as they are carried further off 

 either to the north, or to the fouth. 



I afterwards on my travels, ha. 

 frequent proofs of this truth. The Saffa- 

 fras, which grows in Penfyhania, under 



forty 





