lO BULI.ETIN 4 124 



in a collection at Oxford, the site of the University of Mississippi, 

 he was able to say that the beds whence they came, (Reeve's, 

 Tippah Co.), are identical with deposits about Middleton, Tenn., 

 and he proposes for them the name of " Middleton formation." 



Judging from a letter received from Dr. Safford, Feb. 25, 1896, 

 we conclude that it is the grayish, calcareous clays with green 

 grains as exposed at Hannah's and Huddleston's near Craines- 

 ville, at Middleton, at Reeve's and at Blue Mt., that the Doctor 

 would include in his newly named formation. The old localities, 

 two miles east and two miles south of Middleton whence the 

 Gabb specimens were derived, are not definitely correlated. 



Harris. — The winter of 1891-2 was spent by G. D. Harris in 

 studying the Tertiary of southern Arkansas. The results of 

 this study were embodied in vol. ii, Ann'l Rep't Geol, Surv., 

 Ark., for 1892; the report, however, was not published and dis- 

 tributed until June, 1894. The Midway stage of that State was 

 therein discussed and several observations regarding the same 

 formation in different States were moreover given. The writer 

 called attention (1. c, p. 23) to the probable Midway age of the 

 Tippah Co. rocks referred by Hilgard to the Silicious Claiborne. 

 The Midway formation in Texas was identified by means of 

 fossils obtained by the U. S. Geological Survey from near Web- 

 berville on the Colorado river and in Kaufman county. 



Aldrich. — In the latter part of the summer of 1894, Mr. T. H. 

 Aldrich published a short account of the Midway fauna of Ala- 

 bama in the report for that year of the State Geologist. He 

 described several new species as will appear later on. 



In June, 1895, Mr. Aldrich published in Bull. Am. Pal., No. 

 2, several new molluscan species from the Eocene of Alabama. 

 A few were from Matthews' Landing and hence from the upper 

 part of the Midway stage. 



Stratigraphic Nomenci^ature. 



Synonymy. 



Beds now recognized as belonging to the Midway stage have 

 hitherto been referred to as — 



Buff Sand, Winchell, Proc. Am. Ass. Adv. Sci., vol. x, p. 89, 

 1856. 



Basal or Wills Point Clays, Penrose, ist Ann'l Rep't Geol. 

 Surv., Tex., 1890, p. 19. 



Black Bhff division of the Lignitic, Smith and Johnson, Bull. 

 U. S. Geol. Surv., No. 43, p. 18, 1887. 



Claiborne, Loughridge, loth Census, vol. vi, p. 280, 1884. 



Clayton, L^angdon, Bull. Geol. Soc. Am., vol. ii, p. 594, 1891. 



