Authors Catalogue. 131 
nigh impossible to eradicate the antiquated views which still continue- 
to creep into the current literature relating to the region. Every bit 
of evidence that has been obtained in regard to the geological history 
of the Ozark uplift points conclusively to the fact that not only was the 
dome or "island" character of the area not acquired until a very latt- 
date, geologically speaking, during Tertiary times — the older formations 
having been removed down to the Silurian or Cambrian during the 
Cretaceous ■ base-leveling process that prevailed over a large area of 
this portion of the continent — but that during the later Paleozoic, up to 
the epoch in which the coal deposits were laid down, sedimentation was 
uninterrupted over the entire regfon. In substantiation of the state- 
ment that the Devonian and Lower Carboniferous (up to the Kaskaskia) 
strata once extended unbrokenly over the whole -of the present Ozark 
dome, but were almost entirely removed through subsequent erosion at 
a later date, one has only to point to the fact that remnants of highly 
fossiliferous beds of undoubted Devonian and Lower Carboniferous age 
are still found on the highest portions of the central parts of the uplift. 
C. R. K. 
MONTHLY AUTHORS' CATALOGUE 
OF American Geological Literature, 
Arranged Alphabetically* 
Ball, T. H. 
The Lake Michigan and Mississippi Valley water shed. (Indiana 
Acad. Sci., Proc. 1896, pp. 72-73, 1897.) 
Ball, T. H. 
Some notice of streams, springs, wells and sand ridges in Lake 
county, Indiana. (Indiana Acad. Sci., Proc. 1896, pp. 73-75, 1897.) 
Carter, O. C. S. 
The upper Schuylkill river. (14 pp.; reprint from Jour. Franklin 
Inst, Nov. 1897.") 
Chamberlin, T. C. 
Supplementary hypothesis respecting the origin of the loess of the 
Mississippi valley. (Jour. Geol., vol. 5, pp. 795-802, Nov.-Dec. 1897.) 
Chamberlin, T. C. 
Studies for students. The method of multiple working hypotheses. 
(Jour. Geol., vol. 5, pp. 837-848, Nov.-Dec. 1897.) 
Corthell, E. L. 
The delta of the Mississippi river. (Nat. Geog. Mag., vol. 8. pp. 
351-354, Dec. 1897.) 
Cragin, F. W. 
Discovery of marine Jurassic rocks in southwestern Texas. (Jour. 
Geol., vol. 5, pp. 813-820, Nov.-Dec. 1897.) 
*This li.st includes titles of articles receiveil up to tlio 2()th of tlie precoilinj; 
month, including genoral geolotf.v, i>h.v.-iiograi)li,v, paluontology, petrology and 
mineralogy. 
