56 
389 Keyes (Charles Rollin). [Review of "Great Valley of California: 
a criticism of the theory of isostasy," by F. Leslie Eansome ; 
"British geology," by T. Mallard Reade; aud "Notes on the 
gravity determinations reported by Mr. G. R. Putnam," by 
G. K. Gilbert.] 
Jour, of Geol., vol. iv, pp. 729-733, 1896. 
390 [Review of "Text-book of Paleontology, vol. i, Part I," by K. 
A. von Zittel.] 
Jour, of Geol., vol. iv, pp. 733-738, 1896. 
391 — — The Bethany limestone of western interior coal field. 
Am. Jour. Sci., 4th ser., vol. ii, pp. 221-225, 1896. 
Discusses the use of the terms Bethany and Erie limestone and gives 
a list of bibliographic references. 
392 Biographical sketch of Charles Wachsmuth. 
Am. Geol., vol. xvii, pp. 131-136, pi. vi, 1896. 
Gives a sketch of the life of Wachsmuth and a list of his principal 
scientific publications. 
393 Thickness of the Paleozoic rocks in the Mississippi basin. 
Am. Geol., vol. xvii, pp. 169-173, 1896. 
Discusses the evidences of the thickness of the Paleozoic series in 
Missouri, with special reference to the thickness of the Carboniferous 
series. 
394 Serial nomenclature of the Carboniferous. 
Am. Geol., vol. xviii, pp. 22-28, 1896. 
Reviews the history of the nomenclature of the Carboniferous in the 
Mississippi Valley. 
395 Orotaxis : a method of geologic correlation. 
Am. Geol., vol. xviii, pp. 289-302, 1896. 
Discusses the value of biotic and of physical methods of correlation 
and of the practicability of defining stratigraphic succession by the 
succession of orographic movements. 
396 A gigantic orthoceratite from the American Carboniferous. 
Science, new ser., vol. iii, pp. 94-95, 1896. 
Describes briefly the occurrence of the Orthoceras group in Paleozoic 
rocks and the occurrence of O. fauslerensis in the Carboniferous rocks of 
Iowa. 
397 [Review of "Iowa Geological Survey, Vol. V, Annual Report 
for 1895."] 
Science, new ser., vol. iv, p. 408, 1896. 
398 Note on the nature of cone-in-cone. 
Iowa Acad. Sci., Proc, vol. iii, pp. 75-76, 1896. 
Describes specimens found in Iowa which contain a large percentage 
of lime. 
399 Two remarkable cephalopods from the upper Paleozoic. 
Iowa Acad. Sci., Proc, vol. iii, pp. 76-78, fig. 4, 1896. 
Describes Nautilus ponderosus and Orthoceras fauslerensis from the 
Coal Measures of Iowa. 
