? 



MUSEUM OF COMPAUATIVE ZOOLOGY. 



247 



fossils of any kind were found to prove it. Above tins there is a covered 



space (beds ^o. 51 and 52) of 1,300 to 1,500 feet, which is referred to 



the Ked-beda or Triassic. The whole is covered by a thickness of Jurassic 



strata, overlaid by about 2,000 feet of Cretaceous. From this it appears 



very probable that the remains of 2:)lants found by Rev. Mr. Lakes first, 



and after him by Prof. Scudder, represent part of the first scries of beds 



No. 18 to 50, all exposed and as yet hypothctically referred by Dr. 



Pealo to the Carboniferous and the Permian. The exact location of the 



plant-bearing beds in the section of Dr. Peale may probably be easily 

 determined. 



October, 1882. 



