EDITORIAL 473" 



(Dutton), the Division of the Crystalline Schists of the Appala- 

 chian and Lake Superior Regions (Pumpelly and Irving respect- 

 ively), the Appalachian Region (Gilbert), and the Yellowstone 

 Park (Hague). As divisions became more numerous and 

 restricted, the administrative machinery became more complex, 

 and the opportunities afforded the geologists in charge to study 

 broad problems became more and more limited. Finally it was 

 found that the administrative relations were not only difficult, 

 but expensive, since they involved the maintenance of independ- 

 ent offices and clerks, and in the interests of economy and effi- 

 ciency the system of geographic divisions was abolished in 1893. 

 In its place was substituted an organization by parties, of which 

 there were at first twenty and subsequently nearly double that 

 number, each acting independently of the other except in so far 

 as they were all brought into cooperation through the Director 

 and the Assistant in Geology. Broad coordination of scientific 

 work was for the time being subordinated to the accumulation 

 of facts, especially in the form of geologic maps, rather than to 

 the consideration of philosophic problems. After six years of 

 this activity in the working out of special problems, the time 

 has come for broader supervision and coordination of work, and 

 to this end the following appointments have been made : 



George F. Becker, Geologist in Charge of Physical and Chemical 

 Research. 



T. C. Chamberlin, Geologist in Charge of all Pleistocene Geology. 



S. F. Emmons, Geologist in Charge of Investigation of Metalliferous Ores. 



C. Willard Hayes, Geologist in Charge of Investigation of Non-Metallifer- 

 ous Economic Deposits. 



T. W. Stanton, Paleontologist in Charge of Paleontology. 



C. R. Van Hise, Geologist in Charge of Pre-Cambrian and Metamorphic 

 Geology. 



Bailey Willis (Assistant in Geology to the Director), Geologist in Charge 

 of Areal Geology. 



The field of supervision of each geologist, in charge is 

 coextensive with the work of the Geological Survey and relates 

 to all parties engaged in work connected with his special sub- 

 ject. His assistance in field or office work may appropriately be 



