10 PROCEEDINGS OP THE ACADEMY OF 



3. Slope probably occupied by shale or clay 40 



4. Grayish yellow limestone, with Fusulina cylindrica and Spirigera sub- 

 tilita 5 



5. Bluish gray soft shale, or laminated clay with occasional harder 

 sandy seams 38 



6. Coal immediately overlaid by one inch of cone-in-cone J 



7. Bluish gray laminated clay or soft shale, extending down to the creek 18 

 Again, on Little Stranger creek, some twelve miles south west of Leaven- 

 worth city, there is a somewhat similar exposure, containing a twenty inch 

 bed of coal. This bed is worked to some extent on the land of Mr. Charles 

 Stone, where the following section may be seen in the descending order : 



Feet, 



1. Light gray, or bluish gray, soft calcareous sandstone with harder 

 layers containing much argillaceous matter, with Productus splendens ? 

 Myalina subquadrata, an undetermined Jllonotis, and many fucoidal mark- 

 ings ; exposing a thickness of 15 



2. Blue laminated clays more or less arenaceous above 26 



3. Coal If 



4. Bluish gray somewhat ferruginous clay rising above the creek 4 



We have no means of determining what relations the rocks composing these 



two sections bear to the exposure at Leavenworth, but we think- they hold a 

 position between the bed of limestone seen near the top of the hills back 

 of Leavenworth city, and the upper bed of the section near the Leavenworth 

 landing. 



Between Big Stranger and Grasshopper creeks, the road passes over a beauti- 

 ful rich prairie, elevated about 350 or 400 feet above the Missouri. In cross- 

 ing this prairie we met with no exposures of rock, the whole being covered by 

 heavy Quaternary deposits, into which wells have been sunk at several places, 

 from thirty to seventy feet without striking solid rock in situ. At one or two 

 places, however, we saw masses of limestone which had been quarried for 

 building purposes along a little stream two or three miles north of the road. 

 These contained amongst other fossils Spirifer cameratus, Orthisina umbraculum? 

 Fusulina cylindrica, and fragments of Fenestella, with spines and plates of Archao- 

 cidaris. We had no opportunity to examine the quarry from which this rock 

 was obtained, but were informed that the bed is some sixty or seventy feet 

 below the summit of the higher portions of the surrounding country. 



In descending from this elevated prairie into the valley of Grasshopper creek, 



at Osawkee village, we observed, 



Feet. 



1. A bed of hard gray limestone near the summit of the slopes, contain- 

 ing great numbers of Fusulina 8 



2. Slope, no rocks exposed, about 55 



3. Outcrop of Fusulina limestone, apparently 3 



4. Slope, no rocks exposed ."." ^ 



5. Gray or bluish gray limestone, weathering yellowish, containing 

 Pleurotomaria humerosa, P. subturbinata, and a large undetermined species 

 of Bellerophon ; also Allorisma ? Leavemuorthensis, Myalina subquadrata, 

 Pinna undt., Spirifer cameratus, S. planoconvcza and Productus aquicostatus, 

 with great numbers of Fusulina cylindrica 3 



6. Dark gray indurated clay 2 



7. Rather soft argillaceous limestone 4 



The fact that several of the fossils seen here in bed No. 4 are the same spe- 

 cies found in No. 5, of the section at Leavenworth landing, would seem to in- 

 dicate that these beds occupy the same geological horizon. It is very difficult, 

 however, to identify the same beds at different localities amongst these forma- 

 tions, in consequence of the fact that the fossils found in them usually have a 

 great vertical range, and exactly similar strata are often repeated in various 

 parts of the series. Should it prove *o be the case that they do occupy the 

 same geological horizon, it would show that there is here a gentle eastward 



[Jan. 



