xii REPORT — 1898. 



INTEENATIONAL CONFERENCE 



ON 



TERRESTRIAL MAGNETISM AND ATMOSPHERIC ELECTRICITY. 



THURSDAY, SEPTEMBER 8. 



Page 

 Address by Professor A. W. Ruckeb, M.A., D.Sc, Sec. R.S., President of 



the Conference 733 



1. On the Relative Advantages of Long and Short Magnets. By Professor 



E. Mascaet 741 



2. On the Construction of Magnets of Constant Intensity under Changes of 

 Temperature. By J. R. Ashwoeth, B.Sc 742 



FRIDAY, SEPTEMBER 9. 



1. On the Establishment of Temporary Magnetic Observatories in Certain 



Localities, especially in Tropical Countries. By Professor von Bbzold 

 and General Rykatcheff 743 



2. The Application of Terrestrial Magnetism to the Solution of some 

 Problems of Cosmical Physics. By Aethtje Schtjstee, F.R.S 745 



3. Antrag auf Massnahmen ziir systematischen Erforschung der Saecular- 

 variationen der erdmagnetischen Elemente. Von Dr. Ad. Schmidt ... 747 



4. On Simultaneous Magnetic Observations. By Dr. Eschenhagen 748 



6. Discussion on Monthly Means 749 



6. A Discussion on the Publication of the Differences between the Hourly 

 Means of the Components of the Magnetic Force (X, Y, Z) and the 

 Monthly Means 749 



7. On Magnetic Observations in the Azores. By Albert, Prince of Monaco 749 



8. *0n Magnetic Observatories in Cape Colony. By Dr. Beattie and 

 Mr. MoERisoN 750 



9. Sur le Mouvement diume du Pole Nord d'un Barreau Magn^tique 

 suspendu par le centre de gravity. Par J. B. Capello 750 



MONDAY, SEPTEMBER 12. 



1 . An Account of the late Professor John Couch Adams's Determination of 

 the Gaussian Magnetic Constants. "By Professor W. Getlls Adams, 

 F.R.S 752 



2. On a Simple Method of obtaining the Expression of the Magnetic 

 Potential of the Earth in a Series of Spherical Harmonics. Bv Aeihtjr 

 Schuster, F.R.S '. 752 



