220 thp: ick age in Canada. 



llie (tit})orLuiiily <»f c'oiM])ariii^ my spet'iiiicns with those 

 in tiieir colluotioiis. 



^ly conipiU'isoiis with recent .s])e('ie.s have heeii made to 

 a jireat extent witli specimens (h-edgcd Ity myself, in the 

 ,u;nll;' and rivcsr St. liawrenee, and especially at Murray 

 hay and Metis, where the marine fauna seems to ho more 

 nearly related to that »jf the Pleistocene than in any part 

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

 1 have also to acknowled.^e the use of specimens from 

 Greenland, from I'rof. ^Nlorcli : from Norway from Mr. 

 McAndrew ; from Xova Scotia from ]\Ir. Willis; as well 

 as the use of the lar^e and valuahle collections of J)r. 

 Carpenter and aLv. AN'hitcaves. 



All the refer- "es in the followinif i)a,i;es, except where 

 authors are (juo.ed, and many of these last, have heen 

 verified l>y myself liy actual comparison of specimens. 



The princii)al works to which I have referred in the 

 laihlication of the catalogue are the following: 



Beechey's Voyage, Natural Htstory .Appendix. 



Ik'lcher's Last of tlie Arctic \'oyages, do. 



liell. Report on Inveitel)rata of (iulf of St. Lawrence. 



IJiisk, I'olyzoa of tiie Crag. 



Crosskey on I'ost-pliocene of Scotland. 



Fabrioius, Fauna (Ird'nlandica. 



Forbes and Hanley, liritisli Mollusca. 



Gould, Invertebrata of Massachusetts, edited by Binney. 



Jeffreys' British Conchology. 



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



America. 

 Matthew on Post-pliocene of New Brunswick. 

 MiddendortF, Shells of Siberia. 



Packard on the Glacial Piienoniena of Labrador and Maine. 

 Prestwich on the English Crag. 

 Sars on the (Quaternary of Norway. 

 Stinipson, Shells of Hayes' Expedition, &c. 



