THE LARAMIE FORMATION AND THE SHOSHONE GROUP 45 



perfected for that continent. While I have no inclination to question the 

 general accuracy of the European scheme of classification for that continent, 

 I do not hesitate to express the opinion that it is not of infallible application 

 to other parts of the world, except as to its larger divisions, and that even 

 in this respect it will need modification. That is, I hold that investigation 

 of the formations which are found upon any given continent or great divi- 

 sion of the earth's surface ought to be prosecuted, first, with relation to one 

 another, and second, with reference to their ultimate, not immediate, cor- 

 relation with those of other continents or divisions. ^° 



" Vice-Presidential address, The North American , Mesozoic, Proc. 

 A.A.A.S., Vol. XXXVIII, 1889, pp. 225-226. 



