DEPARTMENT OF TERRESTRIAL MAGNETISM. 309 



clear it. This flow did not extend far into the sea west of Spitzbergen, it 

 having drifted down from Stor Fjord to the eastward of Spitzbergen. Standing 

 to the westward, we cleared the ice, and being favored with fair winds and 

 good weather, continued northward. 



"On August 2, all plans were made to smng ship the next day north of 

 latitude 80°, the engine being in running order. That night the southwesterly 

 wind increased to a gale, making it necessary for us to heave-to and try to get 

 south, as the solid polar ice-pack was only about 50 miles to the northward. 

 Our farthest north, therefore, was latitude 79° 62'. 3. After 4 days of head winds 

 we again had favorable winds, but for 4 days we saw nothing of the Sun, and 

 consequently secured no declination observations. Off the northeast coast 

 of Iceland another head wind was encountered, which lasted 7 days. 



"On August 21, the day of the eclipse, we had our first clear weather for 2 

 weeks and had a fine view of the eclipse, getting numerous photographs and 

 noting times of contact. From there to Reykjavik, where we arrived on 

 August 24, the trip was without incident, with the excei^tion of 2 days' head 

 winds, just before entering the harbor." 



The Carnegie thus reached a high northerly latitude and secured 

 a valuable series of magnetic observations in a region of high magnetic 

 latitude. The largest observed dip was 81°. 3, the value of the hori- 

 zontal intensity at this point being 0.081 c. g. s. unit. 



As evidence of the promptness with which the results of the magnetic 

 observations, obtained on board the Carnegie, may be made known, 

 the following facts are cited: The values of the magnetic declination 

 (the variation of the compass, as the mariner calls it) obtained on the 

 portion of the cruise from Long Island Sound to Hammerfest, June 

 10 to Julj' 2, 1914, were printed in the Journal of Terrestrial Magnetism 

 ■which w^as issued on September 1, 1914; the values observed from 

 Hammerfest to Reykjavik, July 26 to August 23, 1914, were received 

 at Washington on September 21, and those from Reykjavik to 

 Greenport, September 15 to October 11, were received on October 

 16; the results of the entire cruise appear in this report (table 1). 

 The values of the other magnetic elements (dip and intensity) were 

 received at Washington at the same time as the declination values. 

 They are not published here, as the mariner does not need these 

 particular elements for his immediate purpose, and, furthermore, the 

 values require certain corrections which can not well be determined 

 until a discussion has been made of all the shore observations and 

 comparisons secured during the cruise. 



Table 1 shows that, in general, the chart correction has a minus 

 sign for nearly the entire cruise from Long Island Sound to Hammer- 

 fest, and thence to Reykjavik. This means that the chart values of 

 west compass direction are, in general, too low on the values observed 

 aboard the Carnegie. The general result found on the present cruise 

 of 1914 is thus in entire agreement with that announced for the first 

 cruise. of the Carnegie, New York to Falm^outh, England, in 1909. 



