LETTERS TO A. GEIKIE 



appreciate the fact that the degree of metamorphism is 

 more and more marked as you go south from Vermont 

 to Connecticut, and as you go east from the Taconic 

 range. West of the Taconic Range the schist and lime- 

 stone become but less crystalline, and for the most part 

 the schists are hydromica schists, and what has been 

 called clay-slate. I have requested a friend at Pough- 

 keepsie Prof. W. B. Dwight to send you a specimen 

 or two of the Poughkeepsie slate and the adjoining lime- 

 stone. The frondiferous specimen which I offered you 

 when you were at my house I have put in the package. 



" I regret that I have no good set of duplicates from 

 the Taconic region to give you ; but, such as they are, 

 you may learn something from them about our Green 

 Mountain Geology. 



" I would add that in Connecticut, the mica schists 

 and gneisses connected with the limestone region, and 

 conformable with the limestone, are among the coarser 

 and least characterized varieties. You will see this 

 brought out in my papers." 



DANA TO GEIKIE 



" NEW HAVEN, January 27, 1882. 



14 As to my paper you will find in it nothing contro- 

 versial and almost nothing about T. S. H. nothing 

 calculated to offend him, though it may make him wish 

 I had kept silent. I simply show that his doubt is un- 

 called for; that all investigators of the region of the 

 Taconic Mountains and that adjoining, from Emmons to 

 the latest, have come to the same conclusion that I have 

 reached as to the conformability of the schists and lime- 

 stone, the point referred to in the doubt. I propose to 

 send the article next week. At the same time I will 

 send a copy of my several articles on the Green Mountain 

 region, bound up, for the Geological Society." 



DANA TO GEIKIE 



" NEW HAVEN, January 30, 1882. 



" Had I been present at the meeting of the Geological 

 Society on the i6th of November last, the closing remark 



335 



