292 SEC. 9. MAGNETISM. 



1204. Edelmann's Variation Instrument for Vertical 

 Intensity. M. Th. Edelmann, Munich. 



1205. Edelmann's Magnetometer for declination, vertical 

 and horizontal intensity. M. Th. Edelmann, Munich. 



1206. Portable Magnet Theodolite. 



M. Th. Edelmann, Munich. 



1207. Weber's Earth Inductor, new construction. 



M. Th. Edelmann, Munich. 



1207 a. Book, containing special treatises on some of the 

 above instruments. M. Th. Edelmann. 



1207b. Book, containing the description of the above-named 

 apparatus. M. Th. Edelmann. 



1209. Photograph of Gauss's Bifilar Magnetometer. 



Magnetic Department of the Observatory, Gottingen, Prof. 

 Dr. Schering, Director. 



1210. Photograph of the observing Telescope, belonging 

 to the above. 



Magnetic Department of the Observatory, Gottingen, Prof. 

 Dr. Schering, Director. 



1211. Photograph of Gauss's Earth Inductor. 



Magnetic Department of the Observatory, Gottingen, Prof. 

 Dr. Schering, Director. 



1212. Photograph of the Multiplier and Needle. For 



the determination of Inclination and Absolute Intensity. 



Magnetic Department of the Observatory, Gottingen, Prof. 

 Dr. Schering> Director. 



1213. Photograph of the Auxiliary or Deviation Needle. 



Magnetic Department of the Observatory, Gottingen, Prof. 

 Dr. Schering, Director. 



1214. Photograph of the Theodolite for the determination 

 of the Declination. 



Magnetic Department of the Observatory, Gottingen, Prof. 

 Dr. Schering, Director. 



1215. Description of the above-named instruments ; Gauss's 

 Works, vols. 1-7. 



Magnetic Department of the Observatory, Gottingen, Prof. 

 Dr. Schering, Director. 





