220 THE ICE AGE IN CANADA. 



the opportunity of comparing my specimens with those 

 in their collections. 



My comparisons with recent species have been made to 

 a great extent with specimens dredged by myself, in the 

 gulf and river St. Lawrenee, and especially at Murray 

 bay and Metis, where the marine fauna seems to be more 

 nearly related to that of the Pleistocene than in any part 

 of the gulf of St. Lawrence with which I am acquainted. 

 I. have also to acknowledge the use of specimens from 

 Greenland, from Prof. Morch; from Norway from Mr. 

 McAndrew ; from Nova Scotia from Mr. Willis ; as well 

 as the use of the large and valuable collections of Dr. 

 Carpenter and Mr. Whiteaves. 



All the references in the following pages, except where 

 authors are quoted, and many of these last, have been 

 verified by myself by actual comparison of specimens. 



The principal works to which I have referred in the 

 publication of the catalogue are the following : 



Beechey's Voyage, Natural History Appendix. 



Belcher's Last of the Arctic Voyages, do. 



Bell, Report on Invertebrata of Gulf of St. Lawrence. 



Busk, Polyzoa of the Crag. 



Crosskey on Post-pliocene of Scotland. 



Fabricius, Fauna Groenlaiidica. 



Forbes and Hanley, British Mollusca. 



Gould, Invertebrata of Massachusetts, edited by Binney. 



Jeffreys' British Conchology. 



Lyell on Shells collected by Captain Bayfield ; and Travels in North 



America. 



Matthew on Post-pliocene of New Brunswick. 

 Middendorff, Shells of Siberia. 



Packard on the Glacial Phenomena of Labrador and Maine. 

 Prestwich on the English Crag. 

 Sars on the Quaternary of Norway. 

 Stimpson, Shells of Hayes' Expedition, &c. 



