SCIENCE 



Friday, January 11, 1918 



CONTENTS 

 The American Association for the Advance- 

 ment of Science: — 



Some Economic Aspects of the World War: 

 PigBiDENT Charles E. Van Hisb 27 



Scientific Events: — 



Amos Peaslee Broion; Work of the Na- 

 tional Advisory Committee for Aeronautics; 

 New England Intercollegiate Geological 

 Excursion; Medical Work of the University 

 of Cincinnati; Destruction liy Fire of Scien- 

 tific Laboratories 37 



Scientific Notes and News 41 



University and Educational News 42 



Discussion and Correspondence: — 



Geologic Dates in Physiographic Descrip- 

 tions: Pbofessoe John L. Rich. Removing 

 Insects from Greenhouse Plants: Paul 

 Emerson and J. B. S. Norton 43 



Scientific Books: — 



Millikan on the Electron: H. A. "W. Min- 

 erals of Japan: Dr. Geo. F. Kunz 44 



Special Articles: — 



The Geometrical Mean as a B. Coli Index: 

 William Firth Wells 46 



The American Association for the Advance- 

 ment of Science: — 

 The Pittsburgh Meeting : Dr. L. O. Howard. 84 



MSS. intended for publication and books, etc., intended for 

 review sbouio b« sent to The Editor of Soience, Ganison-on- 

 Hudeon, N. X'. 



SOME ECONOMIC ASPECTS OF THE 

 WORLD WAR. II 



The Espionage Act and the Trading-with- 

 the-Enemy Act 



Under the Espionage Act and the Trad- 

 ing-with-the-Enemy Act all exports and 

 imports are placed under the control of the 

 President with authority to delegate his 

 powers. The control of exports was first 

 exercised by the Exports Council, later by 

 the Exports Administrative Board. This 

 power still later passed to the War Trade 

 Board, and there was added the control of 

 imports. Orders have been issued so that 

 at the present time the exportation and im- 

 portation of all commodities of importance 

 are completely controlled. The exportation 

 of some is altogether prohibited and others 

 prohibited except to our associates in war. 

 Imports are likewise controlled in an ap- 

 propriate fashion. Trade is altogether 

 prohibited with the enemy or ally of the 

 enemy; and with some 1,600 firms in 

 neutral countries. 



These regulations are exercised through 

 licenses ; and there is absolutely no exporta- 

 tion or importation of goods except by those 

 who have licenses approving the particular 

 transactions. 



The Railroad 

 The Priority Administration is organized 

 under the Priority Act. This act compels 

 the railroads of the United States to handle 

 all the transportation business of the 

 country as the President directs. Under 

 the act the President appointed Judge 

 Robert S. Lovett Priority Administrator. 

 In his work the administrator has had the 

 cooperation of the carriers, of the Inter- 



