G. C. Swallow 3 
tained. And — few imparieat forms seem to have various 
affinities ; some to the Zriassic, some to the Liassic and others 
t assic. 
My means of comparing the fossils of the three systems last 
named, are limited, and I would solicit the criticism of those 
__ who have had better opportunities for deciding the age of these 
doubtful rocks between the Cretaceous and Permian. 
_ Iam indebted to Maj. Hawn for peat all the information 
ay in the accompanying map and section of the rocks of 
Section or tHE Rocks or Kansas sy Mas. F. Hawn. 
SYSTEM L—QUATERNARY. 
No. e feet Bluff, the same as in Missouri—2d Ann. Rep. Missouri Survey. 
4 feet white ls Ann. Rep. of Missouri Surve vey. 
ne x 15 feet local drift 
“169 feet of Quaternary. 
SYSTEM II.—CRETACEOUS. 
No, 4—45 feet light gray crystalline limestone. 
“ 5—27 feet slope strewn with light gray calcareous concretions. 
“72 feet of Cretaceous. 
SYSTEM III.—TRIASSIC. (?)* 
No. BB feet light gray arenaceous limestone. 
—10 feet blue pyritiferous clay. — 
feet dark brown ferruginous sandstone. 
— § 
feet fi 
pee eee Yi 
g trees. 
lignite. 
| fast back Se pero clay, containing numerous epee gs 
brown clay. with thin lenite, and 
wees ? 
2280 Arye a doten eas ee » 
ee this is that these beds are between Cretaceous and the 
All we mean by i jess tom tei toe be Ii ces i 
