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Jahres-Berichte und Mitteilungen des oberrheinischen geologischen 
Vereines. .Neuez Holge, 1, 1011, Hi. 2. Pps102; figs. 10; 
pls. 2; map 1. 
Contains many papers by members of the society, among which the 
following few are of more than local importance: 
“Kurze Mitteilungen iiber tektonische Experimente.” By W. 
PAULCKE. Pp. 56-66; pls. 2. In these pages are given a few results 
of a series of experiments illustrating mountain-building forces. Strata 
of different degrees of hardness and subjected to considerable pressure 
gave, when compressed, overthrust faults, recumbent folds, thickenings . 
and thinnings of the softer layers, and numerous other structures com- 
mon to the earth’s crust. 
‘Beitrag zur Kenntnis des Rheingletschers und der Talgeschichte 
der Donau von Sigmaringen bis Ulm.” By Dr. ScHap. Pp. 72-92; 
figs. 6; map 1. Besides a description of the effects of glaciation in this 
valley, ‘“hanging”’ drumlins are described as occurring on valley slopes, 
and are explained as due to the lateral push of subglacial débris up to a 
point where the thinner overlying ice could no longer move it and there- 
fore overrode it. 
Atala 
Untersuchungen tiber den geologischen Bau und die Trias von 
Aragonien. By ApotF Wurm. Zeits. d. deuts. geol. Ges., 
LX tor, Af. 2, pps 35-170; nes, 17. pissy. 
Aragon lies in northeastern Spain. The Triassic system lies uncon- 
formably on the Paleozoics. It has many similarities with the Triassic 
of Germany, the names of whose divisions are applied to those of Aragon. 
The Buntersandstein has a thickness in places of more than 1,700 feet. 
The Muschelkalk follows with different phases in two different areas, 
and with a varying thickness the maximum of which is about 250 feet. 
The overlying Keuper is here composed largely of red and green marls 
and interbedded gypsum, and also has a varying thickness up to 490-650 
feet. Above the Keuper is the Carfiolas, a dark-gray, fine-grained 
dolomite with a maximum thickness of about 250 feet. Germany has 
no similar formation. The paucity of fossils leaves the age of the Car- . 
fiolas uncertain. In this paper it is considered as probably equivalent 
to the Lower Lias. A few intrusions of “ophite”’ is the only represen- 
tation of Triassic igneous activity. The Triassic fauna and the folded — 
and faulted structure are described. 
Ae Beatie 
