on the Taconic System* . 113 



" But experience has taugbt me that in such cases the most 

 elevated minds turn always first to the light, and put themselves 

 at the head of the movement, of reform. Thus, when in 1850 I 

 recognized the Primordial fauna in the Malvern Hills, where the 

 second fauna only had been found, Sir Henry de la Beche and 

 Sir Roderick Murchison were the first to adopt my views, to which 

 little by little the other official geologists agreed ; Edward Forbes 

 ranged himself publicly on my side in 1853 in The Geological 

 Survey, while othei-s still hesitated, until now there is no longer 

 any opponent. 



*' I think there will be the same experience in America, and 

 that in a few years from this time the opinions of your savans will 

 have undergone a great change as regards this question. 



" It is a fine opportunity for Dr. Emmons to reproduce his 

 former observations and ideas with more success than in 1844. 



" Yours very truly, 



J. BARRANDE." 



HI. 



SIR WILLIAM Logan's letter to j. barrande. 

 Vol. V. page 472, ante. 



IV. 



letter from JAMES HALL, PALEONTOLOGIST OF NEW YORK, TO 

 THE EDITORS OP THE AMERICAN JOURNAL OF SCIENCE AND 

 ARTS. 



Gentlemen, — In the Twelfth Annual Report of the Regents of 

 the University* upon the State Cabinet of Natural History, I 

 published descriptions of three species of trilobites from the shales 

 of the town of Georgia in Vermont, referring them to the age of 

 the Hudson River group. These trilobites had been in my pos- 

 session for some two years or more ; and knowing the great inte- 

 rest that would attach to them, whenever published, I had 

 waited, hoping that some new facts might be brought out touch- 

 ing the stratigraphical relations of these rocks in the town of 

 Georgia. 



- I 



* The same to which Mr. Barrande refers in his text to Prof. Bronn, 

 p. 312. The preceding communications sufficiently explain the subject 

 under discussion. 



Can. Nat. 3 Vol. VI. No. 2. 



