1 8 Bulletin 4 133 



few Midway specimens have been collected in limestone quarries 

 near the railway. 



Jackso7i and Independence counties.. — Three miles north of 

 Bradford and at Grand Glaise extensive limestone exposures 

 are found, but they are often rather barren. At present the 

 existence of similar deposits beyond Bayou Departe are unknown. 



Tennessee. 



Omitting all discussion of deposits in Kentucky presumably of 

 Midway age since they have not been studied by the writer per- 

 sonally, the first outcrops east of the Mississippi to receive special 

 attention are those near Crainesville, Hardeman Co. , Tennessee. 



Vicinity of Craijiesville. — About i3^ miles north of this vil- 

 lage there are several fossiliferous exposures near Mr. Hannah's 

 house. In the yard and along the roadside in front of this 

 house the following sequence of strata was noticed: — 



a. Sand bed clayey at base; highest Eocene depos- 



its seen in the vicinity, - - - 10-20 feet. 



b. Whitish sandstone; fossiliferous, - - 8 inches. 



c. Clays, - - - - - 10-15 feet. 



d. Clay-stone with green grains; Venericardia bed, 14 inches. 



e. Clay with peculiar sandstone concretions, 15-20 feet. 

 f. Clay; gray and very fossiliferous above {Leda, 



Tellina, etc.); darker medially and almost 



black at base; lowest bed seen in the vicinity, 25 feet. 



Bed b contains Venericardia planicosta var., Calyptrophorus 

 velatus, Enclimatoceras 2ilrichi, Protocardia var. of nicolletti, Ostrea 

 pulaskensis , CucidlcBa saffordi, Turritella niortoni, Crassatella gabbi, 

 Modiola saffordi, Volutilithes rugatus var. saffordi, Yoldia eborea, 

 Pholadomya niauryi and several indeterminable fragments. 



Bed d is evidently the one from which Johnson obtained his 

 specimens for the U. S. National Museum about ten years ago. 

 Casts of Venericardia probably var. smithi are extremely abund- 

 ant in this bed. 



Bed f is very fossiliferous in its upper part; among others it 

 has furnished Yoldia kindlei, Leda milamensis, Tellina (pi. 6, 

 fig. 8), Corbula subcompressa and Tornatellcea quercollisf . 



Bed e just above the last mentioned is composed of clay in 

 which there are numerous hard sandstone concretions. They vary 

 greatl}^ in size, and lie at all angles to the lines of bedding, being 

 often vertical — dyke-like — through several feet of deposition. 



Bed / when traced downward in the ditches at the side of the 

 road represented in Fig. i becomes nearly black and shows a 

 few poorly preserved specimens of Turritella niortoni var. 



Though we went over a mile east of this locality we met with 



