? 
about 520 feet. These marine deposits of Montreal are of the 
same geological period with the Cetacean remains in question, 
so that the animal to which these belonged may have sailed 
past the rocky islet, which then represented Montreal moun- 
tuin, at an eleyation of 400 feet above the lower levels of the 
city, and in a wide sea which then covered all the plain of the 
Lower St. Lawrence. 
The deposit in which the remains occurred is no doubt the 
are! of the Saxicava sand and gravel, and was probably 
a beach or bank near the base of the Laurentian hills, forming 
the west side of a bay which then occupied the Silurian country 
between the Laurentian hills north of the Ottawa, and those 
extending southward toward the Thousand Islands, and which 
opened into a wide extension of the Gulf of St. Lawrence, 
202 J. W. Dawson—Skeleton of a Whale from Ontario. 
may safely be referred to that above named. The larger of 
the two vertebre, a lumbar one, has the centrum eleven inches 
in transverse diameter, and is seven inches in length. he 
in length. Through the kindness of Mr. Baker the specimens 
have been deposited in the Peter Redpath Museum of McGill 
t 
