Plants. CXI IL Fol FL No. 67. 



PETRIFIED FORMS OF LEAVES OUT OF THE 



Pitt LYLITI Vii TIME. 



Between a thin - slaty sort of stone near the 

 castle Rauche sauve , not far from the bo- 

 rough Chaumerac in the Department de 1'Ar- 

 deche in France one finds at the digging 

 and breaking asunder of the thin beds of 

 stone a great many forms of leaves half 

 burnt to coals, half petrified, which hardly 

 now and then, mostly not at all are found 

 exactly agreeing with leaves of plants, that 

 at present appear upon earth, still lefs with 



those in yon country. Consequently these 

 leaves at present petrified and inclosed bet- 

 ween beds of stone originate from plants, 

 which formerly a thousand years ago grew in. 

 that country, in the mean time that those 

 beds of stone form'd themselves, but now are 

 not met with among the flourishing plants, 

 neither in that country, nor elsewhere in far 

 distant lands of other zones. 



