188 The American Geologist. March, 1902 
WINCHELL, N. H. 
The geology of the Mississippi valley at Little Falls, Minnesota. 
(Kakabikansing, pp. $9-104, 1902.) 
WORTMAN, H. L. 
Studies of Hocene mammalia in the Marsh collection, Peabody 
museum. (Am Jour. Sci., vol. 13, pp. 115-128. Feb., 1902.) 
CORRESPONDENCE. 
REORGANIZATION OF THE GEOLOGIC BRANCH oF THE UNitep STATES 
GEOLOGICAL SURVEY. 
In the U. S. Geological Survey the Geologic Branch is reorganized 
by the appointment of Mr. C. Willard Hayes to the position of 
Geologist in charge of Geology to take effect March Ist, 1902. Mr. 
Hayes has been connected with the survey since 1887 and has served 
with ability in various relations as assistant geologist, geologist, and 
since 1900 as geologist in charge of investigation of non-metalliferous 
economic deposits. He is now placed in administrative control of the 
Geologic Branch in order that the Director may be relieved of exec- 
utive details and the organization may be strengthened by the un- 
divided attention of its head to carrying out the Director’s general policy. 
By this appointment Mr. Willis, who since 1897 as assistant in Geology 
to the Director has performed the administrative work of geology, is 
freed from that duty and will be at liberty to give more attention to the 
division of areal and stratigraphic geology, of which he has charge. 
In announcing these changes at a meeting of geologists in the office 
of the survey on February 20th, the Director called attention to the 
plan of organization of the Geologic Branch set forth in the twenty- 
first annual report, pages 20 and 21, and more fully elaborated in the 
forthcoming twenty-second annual report. The fundamental idea of 
the organization is that scientific direction and supervision may be and 
in most cases should be separated from administrative control. Spe- 
cialists are placed in charge, each one of investigations in a particular 
subject, Becker, Chamberlin,, Day, Emmons, Hayes, Stanton, Van Hise, 
and Willis having been thus appointed, but their authority is in general 
limited to consideration and approval of the scientific aspects of the 
work. Administrative authority remained immediately with the Di- 
rector, and is now in a degree transferred to the Geologist in charge 
of Geology, Mr. Hayes. Bartey Wits. 
On Bettnurus KittorKensts Baily. Amongst the papers bearing 
on Canadian geology published during the year 1901 may be mentioned 
one brief note by professor Grenville A. J. Cole, M. R. I. A. F. G. §. 
in the February issue of the Geological Magazine, Decade IV, No. 440, 
p. 52, London, 1901. In this paper professor Cole criticises the views 
