$64 Professor Hansteen's New Table of the 



to conduct the examination in too hurried a manner to admit 

 of minute accuracy. Of the essential point, however, the pre- 

 sence of cobalt and nickel, there is no doubt ; and hence we 

 may safely infer that this specimen is of meteoric origin. Pro- 

 fessor Stromeyer, in an elaborate investigation of these pro- 

 ductions, has detected cobalt as well as nickel, in every speci- 

 men of meteoric iron which he has examined ; whereas a simi- 

 lar metallic compound of these metals has never yet been dis- 

 covered in the earth. 



Art. XII. — Table of the Variations of the Magnetic Needle, 

 according to the latest observations. By Professor Han- 

 steen. Communicated by the Author. 



1 he following table, which Professor Hansteen was so kind 

 as to communicate to us before his departure for Siberia, is a 

 continuation of those tables which he published in his able 

 work, entitled Untersuchungen iiber den Magnetismus der 

 Erde. Christiania, 1817. We have already communicated to 

 our readers the early measures of the variation of the needle ; 

 and we are therefore glad to be able to complete that series 

 of valuable observations by the following list. 



I. — Denmark, Norway, Sweden, and Finland. 



Anholt Island, Bugge, 1788, 19° 8' W. 



Abo Finland, Hansteen, Sept. 27, 1825, 11 20 



Brahestad Finl. Sept. 1825, 10 38 



Christiansand, Wibe, Mar. 18, 1782, 20 



Christiania, Rick, May 17, 1780, 18 42 



Hansteen, Mar. 10, 1817, 20 3 



May 22,1818, la 59 



Aug. 28, 1821, 19 57 



Sept. 12, 1821, 19 43 



Sept. 26, 1821, 19 34 



May 24, 1822, 19 47 



Dagerort Isl. Schulten, 1800, 12 



Fredriksteen Norw. Vibe, Mar. 24, 1779, 18 



JinnskaUton, Schulten, 1800, 13 00 



Gran Norw. Hansteen, 1821, 18 50 



