Association of American Geologists and Naturalists, 165 



that no person who had once seen the actual movements of a stranded 

 iceberg, would ever afterwards entertain for a moment the idea that 

 such a cause would produce the furrows under consideration. He also 

 thought it very problematical whether icebergs would by their strand- 

 ing, and being irregularly pushed forward by wind and wave, produce 

 moraines, having much if any affinity with those resulting from the 

 slow, regular advance of the Alpine glaciers. 



He offered these suggestions with no small hesitation, fully sensible 

 how presumptuous it might seem in him to venture a difference in 

 opinion with those eminently distinguished geologists who had addressed 

 the Association on this topic. They were, however, such as arose nat- 

 urally in his mind while reflecting on what had passed under his own 

 observation. The facts on which they rested were before the members, 

 and so little was really known, so few had an opportunity of witnessing 

 this part of the aqueo-glacial agency now going forward, he felt sure 

 that they would excuse his having trespassed on so much of their time 

 in submitting at least these facts for their consideration. 



In conclusion, Mr. Couthouy remarked, that he had in this paper used 

 the term aqueo-glacial to express the nature of the action of water and 

 ice, in connection with the deposition of drift, rather than that of glacio- 

 aqueous, proposed by Prof. Hitchcock in his memoir, not merely for its 

 greater euphony, but because he thought it more expressive of the rela- 

 tions of the transporting media, of which water rather than ice was 

 the predominant, or at least the active agent, and therefore entitled to 

 precedence in a descriptive phrase like this. 



A communication was then read from Dr. Hale, inviting the 

 Association to make use of the library and rooms of the Ameri- 

 can Academy. The Association adjourned to 



Tuesday, 3J o'clock, P. M. — Prof. Wm. B. Rogers was call- 

 ed to the chair in consequence of the indisposition of the presi- 

 dent. 



Dr. Jackson exhibited a drawing of the pot holes described by 

 him in the morning, and gave a farther description of the same, 

 and the discussion of the morning was carried on by Prof. Henry 

 D. Rogers, Prof Emmons, Prof Hitchcock, Mr. Redfield, and 

 the chair. 



Prof Beck read a paper " on certain pseudomorphous or par- 

 asitic minerals in the State of New York," on which remarks were 

 offered by B. Silliman, Jr., Dr. Jackson, and Prof Emmons. 



Mr. Vanuxem read a paper '^ on the Origin generally of Mine- 

 ral Springs," which he followed by some remarks on the metal- 



