26 THE ICE AGE IN CANADA. 



Much of the matter contamed in these detached 

 publications now requires revision, more especially the 

 lists of fossils ; and many additional facts have accumu- 

 lated. I purpose, therefore, now to summarize the facts 

 and conclusions of my previous papers and to unite them 

 with the new facts, so as to present as complete a view as 

 possible of the geology of the superficial deposits of 

 Canada. I shall also prepare a complete list of the fossils 

 up to date, with revised nomenclature and synonymy. 

 In this last part of the work I have been aided by the 

 late Dr. P. P. Carpenter and Mr. Whiteaves. I have had 

 the benefit, in the case of several critical species, of the 

 advice of the late Mr. J. G. Jeffreys, the late Mr. E. 

 MacAndrew of London and Mr. Dall of Washington. I 

 am also indebted to Mr. G. S. Brady for determining the 

 Ostracoda, to the Kev. H. W. Crosskey for opportunities 

 of comparing specimens with those of the Clyde Beds, 

 and to Prof. T. E. Jones and Dr. Parker and Mr. G. M. 

 Dawson for help with the Foraminifera. Other names of 

 contributors of information will be mentioned in the notes 

 and in the lists of fossils. 



