298 J. J. Stevenson — Age of the Rocky Afountains. 



The second of these is on page 174, in the third p 

 There the statement is made that the Trias is present in Booth" 

 western Colorado and northern New Mexico, and the testimony 

 of Dr. Newberry, Prof. Cope, Mr. Holmes and Dr. Peale is 

 offered to prove the truth of the statement. This effort to 

 show the existence of the Trias there, taken in connection with 

 the tact that no reference is made to my mention of the group 

 in that region, is very apt to leave the impression either that I 

 failed to recognize the group or that I had denied its existence; 

 which would be an error in each case. The occurrence of the 

 Trias i i that region is used as a strong proof that Trias occurs 

 in the interior in opposition to my assertion that the group is 

 absent in the interior. . With all' due respect for Dr. Peale's 

 judgment, I submit that the presence or absence of Trias in 

 New Mexico or southwestern Colt a to do with 



the " interior," as those districts are outside of the flexed 



, w 176, but begins at the bottom 

 of page 175, where the statement is made that my conclusions 

 in favor of upheaval at the close of the Trias, are based upon 

 unconformability observed at Golden, near Colorado Springs, 

 near Canon City, and also in Huerfano Park. Dr. Peale at 

 once settles the question here by showing that there is no 

 proof of non-conformabilitv at either Golden or Colorado 

 - ■ that, as I had made a mistake at each of these 

 there is every reason to believe that the same mis- 

 take was made at the other localities. Now I grant him all 

 he says about the conditions at Golden and Colorado Springs; 

 the groups are not in direct contact there, and consequently no 

 proof of non-conformability can be found. But that does not 

 concern this matter in any way. As I made no reference to 

 either Golden or Colorado Springs in this connection, I, of 

 </"'ir-.\ made no mistake respecting them, so that Dr. Peale's 

 frith regard to the localities to which I did refer, is 

 - atuitous. 

 The fourth of these statements is in the paragraph beginning 

 at the bottom of page 179, and continuing almost to the bottom 

 of page 180. The n 



iV.. even by the use of the 

 For the sake of 



,-igi .ph 



wuuiu mm uimcuny, even by '' 



- . in callim/ it inoenuous. F< 



uding confusion, as well as for the sake „. , 



would have been " best to state" in the text that " Ynl 



regards as Cretaceous" the debatable lignite group 



- i- Lo . . T t ar\. B in.-d - th - 



v overlooked, and the 



remark on the following page '! that there was no marked 



action until the close of the Lig n with the 



