406 Scientific Intelligence. 
beds containing traces of fossils, probably of Jurassic age, and ac- 
In the Gothard mass, which next follows, there is gneiss varyin 
to mica schist and to granite, with some serpentine (between 4870 
and 5310 meters), and, cahordisiee to the gneiss, hornblendic 
beds, The rocks are closely related to those of the fold of Ur- 
sern, passing into them by an insensible gradation. The fan-like 
position of the beds of Gothard is much more distinct to the south 
than on the northern side. These Gothard rocks are sedimentary 
metamorphic terranes, joining without interruption to the most 
recent beds of the folds of Ursern on the north and of Tessin on 
the south. 
feet of dolomite. These roc or hal e close analogies to those ot 
the Ursern fold, the cipolins of Altekirch corresponding to the 
dolomite of Tessin, ~ sericite schists to the gray peneineoe 
mica schist, and so on. The group then in the valley of Tes 
represents also Diared sa ingaee strata from the Jurassic vA 
Carboniferous. The beds plunge under Gothard with a 
— curve, the dip being greater at ate surface than in the 
tunne 
Thos, the author observes, the mass of Gothard consists of a 
and a break oxi between it and the Ursern fold. 
e serpentine of the Gothard mass is considered by M. Stapff 
“ aes by the alteration of olivine, some grains of which still 
M. Cossa has sad po t part of the rock, though of a 
kind coapable of prieosr entine, is not true serpentine, 
but consists of talc, ns (not Mesheller) and olivine, with the 
pyroxene sometimes predominating. Gtimbel has found frag- 
ments of Crinoids in the Svcekoues of a confirming the 
~ of M. Stapff as to the origin of the limestones. 
The great fault in the Alps after the ‘Comboniferows era.— 
Atcontaae fee M. Lory (Observations sur la structure des Alpes, 
C. R. du Congr, Internationale de Geol. of 1878), the dislocation 
assic era, the Mesozoic beds retin ye id down vo ah on 
the schists, and sometimes now overlying them in horizontal 
