II 
the sledge-journey, in which he has set forth the results of his work that 
has been of such importance to the expedition. These charts give highly 
interesting information of the drift of the ice during the several seasons 
of the year. The relation of this drift to winds and currents will be 
discussed in a later Memoir on the Oceanography, which will shortly appear 
in Vol. III. 
Memoir VII, on Terrestrial Magnetism, has been prepared by Mr. AKsEL 
S. Srzgen, Sub-director of the Meteorological Institute of Christiania, and 
contains Scort-Hansen’s Magnetic Observations and their results. As 
mentioned by Mr. Stern, Prof. G. Neumayer gave the expedition his 
valuable assistance by taking charge of our magnetic equipment. He had 
the instruments made according to his orders, and partly according to his 
special design; and he also gave Capt. Scorr-Hansen careful instruction 
in the use of the instruments, and in the methods of making observations. 
I hope it may give him some satisfaction to see how well his instruction 
has been utilized, and to see the important results of Scort-HansEn’s 
observations, which have been so ably and carefully worked up by Mr. AKsEL 
S. Sreen. Prof. Ap. Scumipt of Gotha has much increased the scien- 
tific interest of these results by kindly calculating theoretically the values 
of the magnetic elements for all localities where magnetic observations were 
made during the expedition. 
Memoir VIII, on the Results of Scort-Hansen’s Pendulum Observations, 
has been prepared by Prof. O. E. Scu1orz, who has also added some 
interesting conclusions with regard to the constitution of the earth’s crust, 
which he thinks may be drawn from these observations. When I planned 
the expedition, I considered it not impossible that we might meet with 
unknown land in high latitudes; and as in such a case it would be of great 
importance to be able to take pendulum observations, Prof. O. E. ScuroTz 
kindly undertook to equip us for this purpose. It was decided to order a 
pendulum apparatus of Colonel von StERNECK’s pattern from Vienna, and 
Von STERNECK himself had the great kindness to determine the constants 
