1878] Geology and Paleontology. 489 
and small nasal bones, a broad front and a narrow and high 
occiput. The preorbital region is concave, and there are three 
infraorbital foramina. It is as large as the existing Atelodus 
bicornis. In the A. fossiger the occipital region does not rise. 
above the level of the front, and is laterally expanded. The pre- 
orbital region is wide and convex, and there is one large infra- 
orbital foramen. The size is about that of the A. malacorhinus, 
but the molar teeth are larger than those of the Rhinoceros indi- 
cus. They are peculiar in the great vertical depth of their fossæ, 
and the isolation of the posterior notch as a pit. This species 
was quite abundant during the period of the Loup Fork epoch, 
and were contemporaries of the Mastodon campester and several 
species of horses. 
Hicu AnD Low WATER IN THE St. Lawrence River.—Unlike 
most rivers the St. Lawrence is not subject to sudden or very 
noticeable fluctuations in respect to the depth of its waters. It 
is stated, however, by residents in the vicinity that once in about 
seven years the water rises two or three feet above its ordinary 
level. There is no question but that this is the case in certain 
years, although it may be doubted whether the period of unusual 
rise commonly given is according to the fact. Two years ago, 
in the summer of 1876, the extraordinary height of the water in 
Lake Ontario and in the river above the rapids was a subject of 
common remark. The rise and subsidence are both gradual, con- 
tinuing several months in the year mentioned, lasting throughout 
the entire summer and autumn. Iam not informed in regard to 
the existence of any special records of observations made to deter- 
mine the cause of this somewhat striking phenomenon. If it is 
due to an unusual fall of snow the preceding winter, causing an 
increase of water throughout the immense territory drained by - 
this river, the fact can be determined directly from the Weather 
Reports furnished by the Signal Service Bureau.—JZ. A. Veeder, 
Antwerp, N. Y. 
Its interest lies in its curious resemblance to a belemnite. Some 
ime ago it was announced that a belemnite had been discovered 
