SHORE MAGNETIC OBSERVATIONS FOR THE CARNEGIE WORK. 



EXPLANATORY REMARKS. 



The following results of shore magnetic observations, made during Cruises I 

 and II of the Carnegie, 1909 to 1913, are extracted from Volume I, pages 76, 88, 91, 

 92, 95-97, and Volume II, pages 28, 29, 43, 44, 47, 48, 50, 51, and 56-61. The 

 same conventions are used as in those volumes, to which reference may be made if 

 fuller information is desired (see also pp. 257-258 of present volume). These shore 

 magnetic results were usually obtained in connection with the comparisons of .ship 

 and land instruments made at every port of call of the vessel. Sometimes additional 

 observations were made, in view of the disclosure of local magnetic disturbances, or 

 for the purpose of obtaining secular-variation data. 



The results of the shore observations made in connection with Cruise III are 

 also added. Those for Cruise IV are to appear in a later volume. 



RESULTS OF SHORE MAGNETIC OBSERVATIONS, 1909-1914. 



AFRICA. 



British South and Central Africa. 



296 



