370 Transactions of the Canadian Institute. [Vol. VII. 



feature in this region. But the col at the head of the valley connecting 

 it with the channel leading to the Atlantic basin is submerged only 

 6,402 feet, or about the same depth as the cirque of St. Lucia, or the 

 indentations within the lines of the Windward Islands, and consequently 

 this St. Croix indentation can be brought within the same investigations 

 of changes of level as the Antillean Chain. By the rise of the land to 

 this amount the migration of South American mammals could have 

 even reached the North American continent. Such was the explana- 

 tion of the occurrence of the numerous South American types of bears 

 found at Port Kennedy, near Philadelphia, upon the remains of which 

 Professor E. D. Cope was at work when overtaken by his untimely 

 death, for these types had no geographical distribution that would 

 suggest a connection with South America by way of Mexico and 

 Central America. 



In conclusion, I must thank the many kind friends, whom we made 

 in all the islands, for their lavish hospitality, so that our scientific trip 

 was converted into a social holiday and a pleasant memory never to be 

 forgotten. 



