812 E.W. Hilgard on the Quaternary of Mississippi. 
is characteristically developed in the northwestern portion of the 
state, on the waters of the Buttahatchie, Looxapalila, and Sipsey. 
It is not specially so described in Tuomey’s Alabama reports, 
from the accidental circumstance of his never having personally 
visited that portion of the state, which afforded no prospect of 
important practical discoveries; but I have traversed the region 
i 56, on a visit to Tuscaloosa, a few months before Prof. 
Tuomey’s untimely death. 
Prof. Safford, in his First Biennial Report of the Tennessee 
on reéxamination, he has changed his views on this point, as 
there stated (§ 166), is sometimes glauconitic in its highest mem- 
ber. iry © 
The greensand of McNairy Co., Tenn., is unquestionably 
es upon 
geologist in Mississippi, to convince one’s self of the identity of 
this capricious formation under all its forms, the knowledge 
which I am even now far from satisfied of having exhausted. 
_ _ The Orange Sand,-as my observations show, overlies in Mis: 
sissippi formations reaching from the lowest Sub-carboniferous 
slate (Saff. 1st Rept., p. 158) through the Cretaceous and Tertiary 
toa group of deposits on the Gulf coast, which so far 1 have 
found to contain only living species, dns an. therciors inclined 
"Prof. Safford refers the beds to the Tertiary in this Journal, xxxvii, 361, May» 
at as ss 50.” — paper treating of the vekeamieds wal Superior F 
