Each of the sheets of previous parts of this volume bears, at its foot, 

 the imprint of a date at which an edition of 100 advance copies, without 

 plates, was distributed to paleontologists and scientific publications. 



Part I, complete, consisting of pages 1-90, with plates 1-11, (in each 

 case, both inclusive) was published in 1885; Part II, of pages 91-196, 

 with plates 12-26, in 1889 ; Part III, of pages 197-254, with plates 27-32, 

 in 1891 ; and Part IV, of pages 255 360, with plates 33-47, in 1892. 



The Part now submitted (Part V) which concludes the volume and 

 consists of pages 361-436, with plates 48-50 and five woodcuts, will bear 

 date herewith. 



GEORGE M. DAWSON. 



Geological Suevey Department, 



Ottawa, November, 1898. 



