142 Canadian Record of Science. 



Logan to suggest a name of (nearly) the same sound (with 

 Desor's) for the fundamental group, but it is clear that he 

 took pains to derive the name from the Laurentide moun- 

 tains." 



" He says (Eeport of Progress, 1852-53, p. 8) ' it has been 

 considered expedient to apply to them for the future, the 

 more distinctive appellation of the Laurentian series, a 

 name founded upon that given by Mr. Garneau to the chain 

 of hills which they compose.' From his standpoint Lauren- 

 tian was the proper term for the great system, and any use 

 of a homophonous word for an insignificant terrane should 

 not stand in its way. The geological public has thoroughly 

 endorsed him." 



It is fortunate that when the more aggressive spirits of 

 the great Republic try to wrest from us the few geological 

 laurels which we can fairly claim, we find friends and 

 allies among the more just and liberally minded of their 

 compatriots. 



Note. 



Since writing the above, I have seen the interesting papex' 

 by Dr. Ells on the Stratigraphy of the Quebec Group, in the 

 Bulletin of the Geological Society of America for 1889. Thi-*, 

 when read in the light of general geology and palseogeo- 

 graphy, T think completely bears out the views above stated. 



Dr. Ells, in his concluding summary, divides the Quebec 

 group, as previously held, into five portions. The first of 

 these includes older crystalline rocks, and the second con- 

 tains beds which may in part be considerably older than the 

 Calciferous. The third includes the lower part of the Quebec 

 group proper, representing the Calciferous of the interior 

 region. The fourth is the central part of the Quebec group, 

 approximatly equivalent to Chazy. The fifth is, in part at 

 least, Upper Quebec group, though I have doubts as to its 

 being all of one age. Under the head of " Palseontological 

 Succession," the same facts appear. The Cape Rosier or 

 Matane (Dictyonema sociale) zone of Lap worth, as I had pre- 



