Recoed of Geology of Texas, 1887-1896. 
131 
Haiuus, Gilbert J). 
Summary ol 'Contents iPreliminary Considerations. Divisions of the 
Eocene. Aim and scoipe of this work., Collections of fossils^ held notes, 
etc., on which this work is based: The Cornell Unjivarsity collection and 
the .collectors’ notes; Dr. J. M. Safford’s collection of types; T. H. Ald- 
rich’s fossils and figures; Collection of the U. S. National Museum; The 
author’s publioations and notes on this stage in Arkansas and Texas. 
(Part il. Creolo.gy. .Brief Historical (Sketch of the 'Study ,of the Midway 
iStage. Period of 1834-1859: peatherstonhaugh, A. Winchell, Harper. 
Period of 1860-11883: 'Grabib, iSafford, Hilgard, Loughridge, White. Period 
of 1884-1896: Johnson, iSmitli, Penrose, Langdon, Spencer, Safford, Har- 
ris, -Aldrich. 
'.Stratigraphic Nomenclature. Synonymy. Usage of the term Midway: 
Priority; Location, geographically and geologically; Differentiation from 
the Lignitic; The Midway Stage, a stratigraphic , and paleontologic unit. 
Geology of the Midway iStage in Different States — ^Texas:. Pio Grande 
■section, iColorado river section, Brazos river section; Palls county. Lime- 
stone county, Kaufman county. Arkansas: Hot Springs county, Pulaski 
county, Lonoke county, Jackson and Independence counties. Tennessee: 
Crainesville and vicinity, Middleton and vicinity. Mississippi: Walnut 
and vicinity, Pipley and vicinity, Pontotoc and vicinity. Alabama : Black 
..Bluff section, Naheola, Prairie Bluff and vicinity, Midway, Matthews’ 
Landing, iSnoiw Hill and vicinity, Allenton and Oak Hill and vicinity, Troy 
and vicinity, Clayton and vicinity. Georgia: Ft. Gaines and vicinity. 
Additional remarks and Deductions — NonconformaJbility :l Texas, Arkan- 
sas, Tennessee, Mississippi, Alabama, Georgia, Correlations made. Varia- 
tion of faunas. 
Part II. Paleontology. Description of the Molluscan Pemains of the 
Midway (Stage. Pelecypoda, Scaphopoda, Gastropoda, Cephalopoda, Plates 
and Explanations. 
‘‘The author’s works and field notes on this stage in Arkansas and Texas. 
— iTlie results of the author’s work on this terrane in Arkansas and Texas 
ai-e embodied in Vol. II of the Ann’l Pept. .Geol. State Survey of 1892. 
The Midway and other Tertiary mollnisoan remains of Texas were fully 
described and figured in a large monograph prepared to accompany the 
Fifth Annual Peport of the State Survey; but appropriations failed and 
the work remains unpublished as a whole; the new species were brought 
out in 1895 by the Philadelphia Academy of Natural Sciences in the ‘Pro- 
ceedings.’ A few field notes and many paleontological facts are published 
for the first time in the present work.” P. 6. 
187. Harrod^ B. M. 
Archsean Rocks in Texas.* 
New Orleans Acad. Sci. Papers, Vol. I, No. 2, pp. 131-133. 
1888. 
“Brief reference to outcrops and characteristics.” From Darton’s Pecord 
of N. A. Geol. Bull. U. S. Geol. Survey, No. 75, p. 83. 
