Explanatory Remarks and Observers 



23 



is the result of seven determinations made during the interval Q*".! to 11''.3, local 

 mean time, inclusive;" G*".! to 20''.3 (dv) is to be read "eye readings of the 

 suspended magnet were made regularly at short intervals from 6^.1 to 20*". 3, local 

 mean time." The local mean times are given according to civil reckoning and are 

 coimted from midnight as zero hour continuously through 24 hours; IG*", for 

 example, means 4 o'clock p. m. 



The declination values, as also of inclination, are in general given in degrees, 

 minutes, and tenths of minute of arc. For instruments which are not regarded 

 as capable of yielding great accuracy only the nearest minute is given. The 

 tabulation of values of the horizontal intensity has already been explained above. 



The instruments used are shown in the columns Mag'r (magnetometer) and 

 Dip Circle. When the number of an instrument in magnetometer column is itali- 

 cized, it means that a dip circle has been used in getting the declination by means 

 of the compass attachment and that total instead of horizontal intensity was 

 observed. A designation in the column Dip Circle, e. g., 206.12, stands for "Dip 

 circle No. 206, needles Nos. 1 and 2;" 222.1256, for "Dip circle No. 222, needles 

 Nos. 1, 2, 5, 6;" 171.12(78) for "Dip circle No. 171, needles Nos. 1 and 2 of No. 171 

 and 7 and 8 of another circle," as explained in Table 3, giving "Dip Corrections." 



OBSERVERS. 



In the last column of the Table of Results, the observer responsible for the 

 observations is shown by his initials. Those engaged from time to time in the 

 execution of the present work were as given in Table 4. 



When observations were made jointly by two observers, this fact is shown by 

 the combination of their last initials, as indicated in the latter part of Table 4. 



For the land observations secured by members of the ocean party the abbre- 

 viation C II has been used for the second cruise of the Carnegie. Observers for 

 the part of the second cruise for which this volume contains results were as follows: 

 W. J. Peters, chief observer and commander; with Observers H. M. W. Edmonds 



Table 4. Land Magnetic Observers, 1911-1913. 



'Observers of the Australasian Antarctic Expedition. "Of the Melbourne Observatory. 



'Originally with the Department of Terrestrial Magnetism, subsequently with the Australasian 

 Antartic Expedition. 'Chinese assistant observer. 



