228 The Anicricd}} Geoloyiat. April, 1S95 
( d ) Dr. Lerch's "ArcacUa cla3"«," 
(e) and the small prairies or meadows in southern Bien- 
ville, northern Winn and Natchitoches parishes, are Lower 
Claiborne in age. 
(f) The "Upper Ligiutie" of Dr. Lerch represents beds 
belonging to two or more different horizons, 
(g) The red clays and red sandy (-lays in the vicinity of 
Mt. Lebanon and Arcadia are Lower Claiborne in age. 
8. Intervening between the Lower Claiborne and Jackson, 
are lignitiferous sands and clays, here called the docksjield 
Ferry beds^ which in a general way represent the Claiborne 
sands of Alabama. 
4. The Jackson and Vicksbiirg stages form a strip f)f terri- 
tory between the Red and Ouachita rivers. They resemble each 
other in lithologic characters so closely that they can be dis- 
tinguished onl}' by their fossils. Apparently coming between 
the two stages is a lignitic bed such as is found in Mississippi. 
West of the Red river Jackson fossils have not been author- 
itatively reported. 
5. The Grand (julf of Louisiana is Lower Miocene. Its 
relations to the Vicksburg are not known. 
0. ('overing the southern part of the I^ower ( 'laiborne area 
and all of the Jackson and Vicksburg, excepting small spots, 
and extending over the Grand Gulf, are deep (piartz sands, 
sometimes with gravel, which bear a growth of long-leaf 
pine. These sands rest unconformably on the lower terranes. 
The name Sparta sands is proposed for them. 
7. Accompanying the larger streams. occu))ying lower lev- 
els than the Sparta sands, are wide second bottoms. Topo- 
graphically still lower are the present alluvial valleys, 
ExiM.ANATION OF Pl.AI'K IX. 
V\u. 1. Seel ion al Slaui'-lilci' Pen bliiH'. al llic lirad nf Cn. ss lakf, 
oin'-hair mile above Slin'Vf|M)it. ( Rfduct'd Irom (iiiurr In L. ('. .loliii- 
soii's Iron l\ci;ions of Louisiana and Texas. |>. IS. i 'I'll is seel ion i)rol>a- 
bly is Liiinilic. 
I'^'k;. 'I. Section of Lower ('laiborne on llainnieli's brancli, S. W. ] 
Sec. :!(». T. IS N., W. (i W., two miles norliieast of Ml. Lebanon. No. 1 
grades into 2, and •") is derived from •> l>\ o\nlation. 
Fi(i. i>. Section ol' Lower ( 'lailxune in liie first railroad cut t iiiir west 
of Arcadia. LiMiutli of cutting L()40 feet: depth. IT) feel. 
1. Led clav with some sand passing into 
2. (ira> laiuinaled clay C'.Xrcadia clays'"), passing into 
