Geologie. 



Allgemeines. 



The Journal of Geology: A Semi-Quarterly Magaziner 

 of Geology and Related Sciences. Vol. I. No. 1. Jan. — Febr. 

 112 p. Chicago 1893. 



Die Aufgabe dieser Zeitschrift wird von T. C. Chamberlin auf S. 86 

 — 87 in folgenden Sätzen ausgesprochen. There seems to be an open field 

 for a periodical which specially invites the discussion of systematic and 

 fundamental themes, and of international and intercontinental relations, 

 and which in particular seeks to promote the study of geographic and 

 Continental evolution, orographic movements, volcanic coordinations and 

 consanguinities , biological developnient and migrations, climatic changes, 

 and similar questions of wide and fundamental interest .... Another phase 

 of geology which is thought to stand in much need of active cultivation 

 is found in the clear and sharp analysis of its processes, the exhaustive 

 Classification of its phenomena, especially on genetic bases, the develop- 

 nient of criteria of discrimination, the more complete evolution and formu- 

 lation of its principles and the development of its working methods. Dieser 

 letzteren Sichtung ist ein besonderer Abschnitt „Studies for Students" 

 gewidmet. 



Das vorliegende Heft enthält folgende Mittheilungen: 



Sir Archibald G-eikie: On the Pre-cambrian Rocks of 

 the British Isles. 1 — 14 r 



W. A.Holmes: Are there Traces of Glacial Man in the 

 Trent on Gravels. 15—37. 



W. S. Williams: Geology as a Part of a College Curri- 

 culum. 38--46. 



T. O. Chamberlin: The Nature of the Englacial Drift 

 of the Mississippi Basin. 47—60. 



Studies for Students. Rollin D. Salisbury: District 

 Glacial Ep ochs and theCriteria for the Recognition. 61—84. 



Th. Liebisch. 



