THE 



CANADIAN RECORD 



OF SCIENCE. 



VOL. IV. JULY, 1890. NO. 3. 



The Quebec Group of Logan. 



By Sie William Dawson, F.R.S. 



The discussion of questions of names in Geology is 

 usually unprofitable and often invidious, and is useful only 

 where justice to the claims of original discovery or the 

 right understanding of natural facts is affected by such 

 questions. I have, as a rule, avoided controversies of this 

 kind, and in my geological work, extended over fifty years, 

 Ihave refrained as far as possible from any reclamations as 

 to my own rights, being disposed rather to allow others to 

 take what I might have regarded as my own, than to make 

 any objection, except where some important truth was en- 

 dangered. I have, however, been less reticent as to the 

 claims of my friends, and especially of those who have 

 passed away. 



In the Presidential address delivered before this Society 

 in 1879, I entered at considerable length into the questions 

 then raised as to the validity and importance of those great 

 and important discoveries of the late Sir William Logan, 

 which led to the establishment of the Quebec Group ; and in 

 a later address to the Eoyal Society of Canada, 1 I took 



1 Presidential address in Section IV. Points on which American 

 Geology is indebted to Canada. 1886. 

 11 



