Geology and Mineralogy. 



Orthis subcarinata, 0. 



triita, Pterin,, i trxtili*. ]>,,■<,■', ,.,t dl.-irns, /-'. ('<>/ 

 '!>"/, Lo;r»„enia FltdiUma, T, ntcctHi, * , !,,,,,,•< 

 i JBeyrichia, probably B. < 



ape 



cies i ot 



determined. 







'en thus exhaustive in the t 





taincd in this subdivision, because 







s it is by more than a hundi 





ta from the true Delthvris 



ber 



-; 



- 



n the geology of the locality 



ih ret miito.hllis, and Ihrfinnnitti* ehtitntu. 

 fossils literally make up the rock. 



The Favosite Limestone,* No. 2, is als 

 of large corals, principally Favosites, 1 

 believe it is not the equivalent of the 

 described by Prof. Hall in his Palseozo: 

 volume ii. It occupies, however, about 

 that distinguished paleontologist to the 

 It is a coarse, brecciated limestone, and 

 sites, an abundance of encrinal frasrmen 

 Helderbei 



,1,0, h, 



»u'„.-h.i;ttri: 



! and other Delthv 



ris Shale "l iU. ' hn-us.t.* 



II, 1 1. ' 



i-ti-'jiu is certainly present 





1 : ry 





le, it is not the only form i 



)f th 











er. The mos 





nmuii tvpe roeinbies" < 



.ery 



fhjselv 



the F. X, 



rnjarrnsis of 



Hail 



, Although this Fav. 





Limest 





distinct from 



the 



Coralline of Schoharie, 







v <>f /-:' a~7," 









-uld 



seem to make that 



fossil of little 





>unt in determining the 



age 



of the 

















,,/ <r,, „;,;/,,/,;< 





„)'cey of the Territork* 



, F. 



V. il.v 



V I.KN, U. S. 



(ienlooist-in-cl 











a -Drainau 



e Map" of (' 



.'.'1. ra 









' J. T. Gakd 





. Wi 







\>. w ; 



LSOX, G. R. 



IJ»-:, : ni.i.i:.'l'l.< 



.ANN 



KIT. G. 1). t IHl TEN S.V.N," 



and 



"it- Keport, from this Survey, containing i 

 that have been determined in the country, 

 pared for making this diagram of the collect 

 is of course and always will be capable of 

 brings out well the great features of the 

 "f the Mississippi The contour lines are t 

 feet, and of each added 1,000. 

 * Name suggested by Prof. D. S. Martin, of Kutgers 



