SCIENCE 



Sixth Year. 

 Vol. XII. No. 287. 



NEW YORK. August 3, i{ 



Single Copies, Ten Cents. 

 I3.50 Per Year, in Advance. 



Kntered at New York Post-Offloe as Second-Olnss Mail-Matter. 



Editorial 



Projected Railways in Asia Minor. — Reappearance of our Na- 

 tive Birds. — International Copyright in Works of Art. — 

 The Cincinnati Exposition. — What .shall the Public Schools 

 Teach ? 



The Coast and Geodetic Survey Exhibit at 

 Cincinnati ...... 



English Railroad Speeds .... 



Scientific News in Washington. 



The United States Geological Survey's Topographic Maps 

 The Proposed National Zoological Park 

 Preparation of Japanese ' Koji ' . 



49 



52 



Electrical Science. 



A New Diffusion I'hotomeler .... 



Electric Traction on the Undergrtjund Roads in London 

 Transformers Based on Electrostatic Induction 

 Alloys for Electrical Resistances with no Temperature Co- 

 efficient ...... 



Chemical Action in a Magnetic Field 



Book-Reviews. 



L'art et la Pocsie chez I'enfant .... 



Notes and News ..... 

 Letters to the Editor. 



A Standard Thermometric .Scale . . O. I/. Tittmann 



Turner's Explorations in Alaska . . R. W. Shufeldt 



The Use of the Microscope as a Practical Test for Oleomargar- 

 ine ..... Ed^ar Richards 



57 



The Science Company, Ptcbliskei'S, ^y Lafayette Place, New York. 



London agent: G. E. Stechcrt, 26 King William Si., Strajid. 



ONE LANGUAGE FOR THE WHOLE WORLD. 



" WORLD ENGLISH," just now ready, is, as its 

 name implies, a new form of the English language for inter- 

 national communication. 



Tt is the invention of Prof. Alexander Melville Bell, the 



'"'■ ''lii''^'"'/}/!! ^'"' "f "Visible Speech," and is so simple, and at 

 the sai<te ,j,'^' io practicable, that it cannot fail of soon being 

 generally accejitcd as the Universal Language. 



Its great superiority over " Volapuk,'' or any other 

 artificial language, may rc.idily be seen by a comparison of the 

 two systems. 



■"t;!;^ Ex-President Andrew D. White, of Cornell University, 

 says: " I believe that the highest interests of Christian civil- 

 ization and of humanity would be served by its adoption 

 China and Japan would be made English-speaking peoples 

 within fifty years, and so brought within the nange of Chris- 

 tianizing and civilizing ideas, in the larg-;st sense. All exist- 

 ing missionary work is trivial as compared with this. For 

 your system would throw wide open those vast countries, as, 

 indeed, all the countries of the world, to the whole current of 

 English and American thought." 



" World English" can be had of all booksellers, or will 

 be sent for 25 cents, post free, by the publisher, 



N. D. C. HODGES, 



47 Lafayette Place, 



New York. 



