1895.] NATURAL SCIENCES OF PHILADELPHIA. 121 



8. Dark greensand, weathering brown, containing 



fish teeth but not invertebrates ....... 6 feet. 



9. Brown sand 4 " 



At Wooter's Bluff, six miles farther north, the beds are also 



found to be unfossiliferous although the higher grounds lying at 

 some distance away from the river show brown sandstones and altered 

 green sands with few fbssils. The section at the bluff appears to be 

 more of a lignitic nature towards the base. 



1. Brown and yellowish- brown sand . . . . 10 to 15 feet. 



2. Clay ironstone 1 to 3 inches. 



3. Dark gray micaceous clay, weathering brown 



on outside 20 feet. 



4. Clay ironstone * ... 1 to 2 inches. 



5. Dark blue or bluish-black micaceous clayey 



sand 2 to 6 feet. 



About a mile and a half east of this bluff the yellowish clay with 

 limy nodules seen at Elkhart and at Hagues gins occurs immediately 

 below a heavy deposit of yellowish-gray sand. 



Crossing the Trinity and going west the "red lands" of Leon 

 County closely correspond in texture and faunal life with the beds 

 of Houston County on the east and the beds found in the northwest 

 corner of Madison County and the Wheelock prairie region. In 

 fact southwest Leon forms but an extension of the Madison and 

 Robertson County beds. A section at the northwest corner of Madi- 

 son may be taken as a type of these "red lands." This section 

 shows : 



1. Brown sand, gravel and conglomerate boulders . 20 feet. 



2. Brownish-yellow sand containing Conns sauHdens 



Con., Pleurotoma, sp., Ostrea selhej'ormis, var. 

 divaricata Lea, Anomia ephippioides Gabb, Pli- 

 catula fihuneiitoxa Con., Pseudoliva vetusta Con., 

 var., Corbula alabamensis Lea, Venericardia 

 planicosta Lam., Clarilithes huinerosa, var. 

 texana Harris, Cerithium vinctum Whitf. and 

 Mesalia elaibornerms Con 2 feet. 



3. Fossiliferous sandstone containing a portion of 



these fossils 1 foot. 



4. Brown sand 



9 



