332 The American Geologist. November. "1905 
ways commission to make a report upon the recession of 
the Canadian side of Niagara falls. 
"Economic Geology" is a new semi-quarterly journal 
devoted to geology as applied to mining and allied indus- 
tries, the editor of which is Prof. John Duer Irving, Lehigh 
University, South Bethlehem, Pa. Its first number is dated 
October-November, 1905. It is an octavo of 100 pages. 
Associate editors are Waldemar Lindgren, James Furman 
Kemp, Frederick Leslie Ransome, Heinrich Ries, Marius R. 
Campbell and Charles Kenneth Leith. 
A MEETING OF THE MEMBERS OF THE DIVISION OF HYDROL- 
OGY of the United States Geological Survey who are en- 
gaged in the artesian water and related geologic investiga- 
tions was held in Washington Saturday, December 9th, for 
the purpose of organizing a society for the discussion of 
problems relating to underground waters and methods of 
increasing the efficiency and economic value of investiga- 
tions. Among those attending the meeting were' F. H. 
Newell, Chief Engineer of the Geological Survey, and offic- 
ials and members of the division of hydrology. The forma- 
tion of the new society was decided upon, but the details 
of organization were left to a future meeting. 
The Hayden Memorial Gold Medal was awarded 
November 7 by the Academy of Natural Sciences of Phila- 
delphia to Dr. C D. Walcott Director of the United States 
Geological Survey. 
Dr. C. H. Gordon, lately of the New Mexico School 
of Mines, is occupied in the study of the geology and the 
ore deposits of certain districts in New Mexico for the 
United States Geological Survey. 
The Eighteenth Winter Meeting of the Geological 
Society of America will be held at Ottawa, Can., Dec. 27-29, 
1905. The President is professor R. Pumpolly- 
ERRATA FOR VOLUME XXXV. 
The plate facing page 104 should be numbered x. Page 245, line 5 
from the bottom, for "inspection" read instruction. Page 404, line 4 from 
the bottom, for xxxiv read xxxv. Page 285, line 18, for "they" read three. 
ERRATA FOR VOLUME XXXVI. 
Page 187, line 62 for "W. U." read G. F. M. Page 250, in the "Edi- 
torial Comment" all references to the plate should read plate xiii instead 
of "plate xvi," and the title should read Willamette instead of "William- 
ette." 
