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 i ina als tte phrase like this. 
A communication ‘was then read from be. ile icaitis the 
to make use of the library and rooms of the Ameri- 
ean | Academy. The Association adjourned to 6 
- Tuesday, 34 o'clock, P. wine Wm. B. Rogers was call 
a to the chair in patients 0 the indisposition of the preg 
dent. | 
Dr. daikon exhibited a pcb ies of the. pot holes deported a 
him in the morning, and gave a farther description of the same, 
andthe discussion of the morning was carried on by Prof. Henry 
D. ae Prof. Emmons, Prof. Hitcheock, Mr. Redfield, and 
the chai 
| Prof. "Beck read a paper “on certain pseudomorphous or par- 
asitic minerals in the State of New York,” on which remarks were 
wees: by B. Silliman, Jr., Dr. Jackson, and Prof. Emmons. 
a paper “on the Origin generally of Mine- 
Vanuxem read 
ral ‘Sonngn’ which he followed by some remarks on the metal- 
