REVIEWS W2i5 
science there is a weakness for what is in mode. When some new view 
is introduced ina country, the chances for its general acceptance will be 
materially increased if it has been adopted in another country, or if it 
is understood to be so adopted. It is only in this way that we can 
explain how the idea of two glacial periods has gained such a foothold 
in Sweden as it has today.” Much of kindred nature follows, involv- 
ing personal implications. The section on America is introduced in 
like fashion. ‘If any one should think the coincidences of American 
interglacial proofs corroborate the proofs of European interglacialists, 
he makes a mistake in so far as that the American interglacial evi- 
dences have not been worked out independently, but after European 
patterns.” 
liocy Abie Osy Io ws UI 
Les Glaciers Plhocénes et Quarternaires de l Auvergne; par M. 
MARCELLIN Boute. Gauthier-Villars et fils, Imprimeurs-Li- 
braires des comptes rendus des séances de 1’Académie des 
Sciences, Paris, Dec. 1895. 
Many geologists have studied the ancient glaciers of Auvergne. 
Rames had observed in the environs of Aurillac glacial formations of 
two different epochs, separated by a lapse of time sufficient to erode 
the valleys. While the moraines in the valleys have been accepted as 
such by all geologists, doubts have been raised as to the morainic nature 
of the more ancient formations on the summits of the hills and on the 
plateaux. The author, having devoted himself for several years to the 
making of a detailed geological map of the Auvergne region, took up 
the subject in much more detail than had previously been given to it. 
The volcanic massifs of Mts. Dore, Cezallier and Cantal, form an 
immense semicircular amphitheater, more than forty kilometers in 
diameter. The plateaux and the lesser declivities of this cirque present 
thousands of monticules that show, on the side toward the cirque, gen- 
tle slopes, rounded surfaces and moutonnées often furrowed with deep 
parallel strize ; while the opposite sides present sharp angles and vertical 
escarpments. Nothing is more curious to the traveler than the differ- 
ence in the landscape as viewed, respectively, looking toward the 
amphitheater and toward the valley opposite. Between the monticules 
there is a labyrinth of meadows, with occasional marshes, underlain 
with morainic material, including striated flints and blocks of all sizes. 
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