VI. PREFACE. 



fossils, and many original groupings and generalizations. The figures 

 are somewhat roughly executed, but they serve sufficiently for the 

 identification of the forms to which they refer. 



Finally, in PART V, the subdivisions, economic minerals, characte- 

 ristic fossils, and general distribution of the rock formations of the 

 two Provinces are given in systematic outline. Here, as elsewhere 

 throughout the work, I have been careful to acknowledge my obliga- 

 tions where information has been specially derived from other sources. 

 The subdivisions adopted with regard to the geological areas of the 

 Provinces are practically the same as those given in the author's 

 "Outline of the Geology of Canada" published in 1876; but their 

 arrangement has been slightly altered, and the greater portion of this 

 section has been entirely rewritten for the present work. 



An Index, containing upwards of three thousand references to 

 minerals, rock-formations, fossils, localities, etc., within the two Pro- 

 vinces, concludes the volume, and will add much, it is thought, to its 

 utility. 



E. J. C. 



TORONTO, April 30, 1888. 



