Geology of the Valley of Reposoir, in Savoy. 117 
have been mentioned. M. Prof. Studer* found gneiss, in 
the Bernese Oberland, lying over the nummulitic formation. 
Perhaps the most extraordinary fact is that stated by M. 
Escher, in his Geological Account of the Canton of Glaris. At 
Ortstock, we find the following section proceeding from above 
downwards: 1. Superior and middle jurassic limestone ; 2. 
Inferior jurassic limestone; 3. Sernfconglomerat, which is a 
puddingstone analogous to that of V alorsine, whose normal 
position is between the crystalline rocks and the jurassic for- 
mation ; 4. The middle jurassic limestone again occurs; 5. 
The nummulitic limestone below all these beds. 
The mountain of Glarnish presents the same section, only 
we find the neocomian limestone and nummulitic limestone 
below the preceding beds. In this mountain, the latter is 
found, therefore, at the summit and the base. These exam- 
ples might be easily multiplied, but I think that we cannot 
find any others more extraordinary.t 
* Bulletin de la Sociéte Geologique de France, 2d Series, t. iv., p. 213. 
+ The following are a few facts analogous to those mentioned in this note, 
and may serve as a point of comparison. 
M. Studer says, that, in some localities in Switzerland, the nummulitic rocks 
are covered by a formation, a fucoides, which incloses belemnites. (Actes de la 
Sociéte Helvetique des Sciences Naturelles, p. 104. Basil, 1838.) 
M. Coquand assures us that M. Savi found a hamites (perhaps Ancyloceras), 
in the macigno in the neighbourhood of Florence; M. Pentland discovered an 
ammonite there, and M. Pareto likewise obtained an ammonite in the macigno 
of the mountains of Génoa. According to M. Coquand, this macigno likewise 
contains nummulites, and ought to be ranked in the cretaceous formatien. (Bul- 
letin de la Sociéte Geologique de France. 2d Series, t. ii., p. 194.) According to 
M. Murchison, these fossils should have been found in the rocks inferior to the 
nummulitic formation. (On the Geological Structure of the Alps, Carpathians, and 
Apennines, from the London, Edinr., and Dublin Phil. Mag., March 1849.) 
M. Gaillardot points out, in the environs of Cairo, beds with ammonites 
covering nummulitic beds at the foot of Mokatam. (Ann. de la Sociéte d’ Emula- 
tion des Vosges, 1845, t. v. 3d Part.) 
According to the account given in Ferussac’s Bulletin Geologie, 1829, t. xvii, 
p. 322, it would appear that M. Partsch has found an ammonite in the fucoidal 
sandstone rocks of Kahlenberg near Vienna. 
