1895.] NATURAL SCIENCES OF PHILADELPHIA. Ho 



have been identified by Mr. Harris.* 2 Pseudoliva vetusta Con., 

 Venerieardia planicosta Lam., have also been obtained from the bluff 

 at Sabine Town. The fossils found in Rusk and Nacogdoches 

 Counties are well preserved and enclosed in a bluish- green indurated 

 marl and hard to extract in a condition suitable for identification. 

 The Sabine Town fossils are enclosed in a brown sand. Seutella 

 caput- sinensis Heilpr. , also occurs in San Augustine as well as west 

 of the Angelina at McBee's School and near Alto, in Cherokee 

 County. 



West of the Angelina River the most important section obtained 

 is that at Alto, in Cherokee County. This section embraces a series 

 of green sands and altered glauconitic sands and sandstones lying close 

 to the top of the " Cook Mountain" beds, and forms the uppermost 

 Eocene deposit in this portion of the State. The section combines the 

 whole of the green sand deposits from Alto, eastward to the edge of 

 the Angelina River " bottom lands," eight or ten miles farther east, 

 and the whole or the greater portion of the section may also be taken 

 as representative of the structure of the country from Alto south- 

 westward to the Neches. The section shows: 



1. Gray sand 5 to 20 feet. 



2. Ferruginous sandstone 1 foot. 



3. Iron pyrites and lignite >} to 1 foot. 



4. Laminated iron ore and brown sand .... 10 to 15 feet. 



5. Brown and yellowish-brown altered glauconitic 



sand with streaks and nodules of calcareous 

 matter and containing Terebra houstonia Har- 

 ris, n. sp. , Pleurotoma (Surcula) gabbii 

 Conrad, Ostrea sellceformis, var. divarieata Lea, 

 Pinna, sp. , Trigonarca pulchra Gabb, Pseudoliva 

 vetusta Con., Volutilithes petrosa Con., Latirus 

 moored Gabb, ( 'orbula texana Harris, Corbula 

 aldrichi, var. smithvillensis Harris, Dentalium 

 minutistriatum Gabb, Venerieardia planicosta 

 Lam., Venerieardia rotunda Lea, Clavilithes 



'-' Harris' MS.. Monograph Texas Tertiary fossils. 



Notk. — I have not visited any of the Idealities referred to in Eusk, Nacog- 

 doches and Sabine Counties. Rusk and Nacogdoches ( lounties were examined in 

 1890 by Mr. J. B. Walker. Ilis sections can he seen in the Second Annual Re- 

 port, Geol. Survey of Texas, 1891, under these county headings. They appear to 

 me to be slightly unreliable. The Sabine Town fossils were sent from there by 

 the Postmaster to Mr. Bumble at his request. K. 



