94 Geology of the Montmorenci — Er/imons. 
not been shown to contain one species Avhich occurs in Vicks- 
burg. If a parallelism with a Mississippi bed was a matter of 
necessity, one might have thought of Jackson, where a species 
of Orbitoides, and the Pecten occur; but I think that in the 
present state of our knowledge any parallelism like that does 
not rest upon sufficient evidence, and cannot claim to be more 
than a vague hypothesis. Moreover, on account of this paral- 
lelism with the beds of Vicksburg, Miss., Prof. Heilprin calls 
these and other rocks, which contain nummulites etc., Ol- 
igocene. I am aware of no fact that proves that the Vicksburg 
beds are contemporaneous with those of the typical European 
Oligocene. On the contrary, the position of these beds in their 
original state appears to be very doubtful. 
Now, to take one example, it will be extremely difficult or 
impossible for any geologist to prove, that the north Floridian 
limestones or the beds of Vicksburg in Mississippi were not 
deposited at the same time as the German Rupelthon ;but on the 
other hand it cannot be wondered at that such hypotheses are 
considered mere guesses. 
The palaeontology of the Miocene is in nearly the same con- 
dition as that of the Eocene. As a subdivision of the Miocene 
will mainly be based upon the examination of its fossils the first 
desideratum would be an investigation and good representation 
of the Miocene fossils. Until this is done a subdivision can. 
hardly be undertaken with any expectation of approaching ac- 
curacy. 
GEOLOGY OF THE MONTMORENCI. 
BY EBENZER EMMONS, M. D. 
[From the Atnerkan Magazine, November, ^^47.^ 
The fall of the Montmorenci, in whatever light it is viewed, is an ob- 
ject of great interest. 
Hitherto it has been mostly regarded as an interesting spectacle, mag- 
nificent phenomenon, and so it truly is; but leave out of view those 
striking features which impress the beholder with awe and admiration,, 
still it is well worthy the attention of the traveller and tourist. 
I propose therefore, to give a brief account of those points and features- 
which I found interesting, on a recent tour of observation to this cele- 
