1894.] 273 fPotnam. 
E. Hitchcock, Daii.i, (ieikic, Li^phain, and oLhers, 1 have found 
the following papers especially useful regarding the method of 
formation of alluvial terraces. 
Hugh Miller, liiver terracing, its methods and their lesults. 
Proc. roy. phys. soc. Edinb., 1883. 
C. B. Brown, On the ancient river deposits of the Amazon. 
Quart, journ. geol. soc. Lond., v. 35. 
R. Chalmers, Geol. and nat. hist. surv. Can. Ann. rej)t., new 
ser., vol. 1, for 1885, GG. Ann. rept., new ser., vol. 4, for 
1888-89, N. 
McGee, The Pleistocene history of northeastern Iowa. 
Eleventh Annual report TT. S. geol. survey, p. 1811-577. 
Professor Niles remarked that last summer in company with 
some students he had observed a sand plain which afforded evi- 
dence that the wind had aided in the accumulation of the mate- 
rial. The plain is lo(;ated south of the village of Keesville, 
N. y., and its westei-n limit is bounded by the Ausable River. 
The levelings made by the party showed the surface to vary 
from five hundred to five hundred and twenty-five feet above sea 
level. About a foot below the surface there occurs a thin layer 
composed in ])art of charcoal. This layer was found in different 
parts of the plain, which is quite a large one for one of its kind. 
From the study made it was concluded that the sand lying above 
the charcoal had been brought there and deposited by the action 
of the wind. Professor Niles thought that there were but few 
sand ])lains in this region which had received so large a contri- 
bution by the agency of the wind. 
General Meeting, April 4, 1894. 
President W. H. Niles in the chair. Forty-nine persons 
present. 
Prof. F. W. Putnam gave an account of the de])artment of 
ethnology at the World's Columbian Exposition, calling atten- 
tion to the many collections which were in the department, par- 
ticularly those which were obtained by the several assistants 
whom he sent into the fiehl in various parts of North, Central, 
PROCEEDINGS B. S. N. H. VOL. XXVI. 18 JCNE 1894r. 
