84 



THE COMPLETION OF THE GENERAL MAGNETIC 

 SURVEY OF AUSTRALIA BY THE CARNEGIE 

 INSTITUTION OF WASHINGTON. 



By 

 Capt. Edward Kidson, O.B.E., M.Sc. 



[Originally written for the Hobart-Melbourne Meeting 

 of the Australasian Association for the Advancement of 

 Science, January, 1921.]* 



(Read before the Royal Society of Tasmania, 8th August, 



1921.) 



The plan of the General Magnetic Survey of Australia 

 by the Department of Terrestrial Magnetism of the Carnegie 

 Institution of Washington was explained in a paper read 

 by the author before the Australasian Association at Mel- 

 bourne in 1913. As there stated, the object was to secure 

 approximately one station for every 10,000 square miles of 

 territory, or about 300 stations in all, with a uniform dis- 

 tribution over the Continent. Lack of facilities for travel- 

 ling over large areas of the interior, of course, prevented 

 the execution of this plan in its entirety, but the number 

 and distribution of the stations established by the close of 

 the survey in November, 1914, may be considered very satis- 

 factory under the circumstances. 



The finally accepted results are given in the appended 

 table, which is self explanatory. Some have already been 

 published in the volumes of the Department of Terrestrial 

 Magnetism, where descriptions of stations will also be found, 

 but some have not yet appeared in print. 



I was assisted at various times during the progress 

 of the work by the following observers: — F. Brown, F. W. 

 Cox, A. L. Kennedy, V/. C. Parkinson, and E. N. Webb. In 

 the last column of the Table of Results the observer respon- 



*Owing' to the Shipping Strike, the meeting of the A.A.A.S., which 

 was to have been held in Hobart, had to be held in Melbourne. As a 

 consequence, numerous difficulties had to be overcome. It was found im- 

 possible to bring out the ordinary Report of the A.A.A.S. meeting and 

 print all papers. Arrangements were made for certain papers to be read 

 before the Society, and printed in the Papers and Proceedings for 1921. 



