FOREIGN COREESPONDENCE. 
293 
the tusks of the former for weapons : — is it not because these bones, 
of which they could not ignore the existence, were fossils in every 
sense of the word, in their time, that is to say entirely deprived of 
animal matter and reduced to the nature of stone, and consequently 
improper (one must, however, except the Silurian mammoth preserved 
in ice) for the use they wished to make of them. It is impossible to 
say what period of time was necessary to change this organic matter 
which constitutes the solidity and tenacity of the bony substance, 
since the well authenticated remains of early Celtic inhabitants, 
which we can only allow to have been buried six thousand years, 
contain it still. In the supposed diluvium of the borders of the 
Somme one easily understands that objects of this kind are never 
found, as in the caverns of Aquitaine, where have been discovered 
so many remains of Celts and the lower animals. 
M. Robert concludes his paper with a quotation from M. Desnoyers, 
" The Gauls would not have failed to make trophies of the remains 
of elephants, hyenas, and other grand mammifers, if they had been 
contemporaneous mth man." 
: On the Cretaceous Deposits of Central Bohemia. By M. Lipold. 
The Quader or Ceuomanian group prevails in the south and central 
regions of this district, while the Planer or Turonian group, appearing 
in isolated hills as far as near Mezeritch, is more exclusively repre- 
sented in the north-east region. The strata of both, having suffered 
no disturbance, lie perfectly horizontal, or with a scarcely perceivable 
angle of inclination. Organic remains are of rare occurrence in them, 
except in the case of the limestones with Hippurites ellipticus, appear- 
ing in the south-east, either as isolated coral-reefs or associated with 
sandstones of the Quader group. 
On the Tertiary and Diluvial Deposits of Central and Eastern Moravia. 
By M. Wolf. 
The tertiaries between Briinn and Olmiitz, belonging to the marine 
deposits of the Vienna Basin, occupy a narrow zone running from 
Steinabrunn north-eastward between the ranges of the Austro-Moravian 
hills into Moravia, and filling up, towards Olmiitz, several bays, cut 
into deposits of older date, as, for instance, in the Zevittawa Yalley 
and around the Mahrisch-Ti iiban. This northern bay near BrUnn was 
a branch of the north-eastern arm of the sea extending, during the 
Miocene period, in a north-eastern direction, and connecting, after 
having passed over the anticlinal of Weisskirchen, the tertiary basins 
of Vienna and Gallicia. Fossiliferous localities are rather numerous, and 
among them Bausnitz and Buditz are conspicuous for numbers and 
variety of organic remains. Of twenty-four species collected at the 
second of these .places, fifteen also occur at Baden (S. of Vienna), and 
fourteen at Steinabrunn (N.N.E. of Vienna), so that, as far as evidence 
