PROPOSED INTERNATIONAL MAGNETIC BUREAU 



By L. A. Bauer. 



CONTENTS. 



Page 



Purpose 203 



(a) A magnetic survey of ocean areas and unexplored regions 203 



(b) International observations of the variations 204 



(c) Observations in ocean depths and atmospheric regions 204 



Method of work 20 



Organization 205 



Funds required 205 



Letters regarding the project : 



Mr. O. H. Tittmann, Superintendent Coast and Geodetic Survey 206 



Prof. G. Neumayer, Director Naval Observatory, Hamburg 207 



Prof. E. Mascart, Director Bureau Central Meteorologique, Paris 208 



Gen. L. Bassot, President Bureau des Longitudes, Paris 209 



Prof. A. Schuster, Director Physical Laboratory, Owens College, Man- 

 chester 210 



Prof. W. von Bezold, Director Prussian Meteorological Institute, 



Berlin 211 



Professors Elster and Geitel 212 



Purpose. 



The purpose of the proposed Bureau is to investigate such prob- 

 lems of world wide interest as relate to the magnetic and electric 

 condition of the earth and its atmosphere, not specifically the sub- 

 ject of inquiry of any one country, but of international concern and 

 benefit. 



Some such problems are : 



(a) A magnetic survey of ocean areas and unexplored regions. — A 

 problem of immediate importance in view of the extensive magnetic 

 work now being carried on in many countries and the various Arctic 

 and Antarctic expeditions in order to complete the magnetic survey 

 of the globe, and thus render possible the construction of more accu- 

 rate and comprehensive charts. When the great part played by the 

 magnetic needle in navigation and exploration is considered, and 

 the intimate relationship between terrestrial magnetism and other 

 sciences, such as meteorology, geology, and astronomy, is so called 



(203) 



