214 KNOTT AND TANAKADATE 



yauui and KöfLi arc nearly 1000 feet above the «ea-level ; Ueda is 

 about 1500 ; Takarnniiachi and Hakone ab<3ut 2500.* It is not 

 surprising then that at the two last-named places the values of the 

 various magnetic elements should be so distinctly abnormal. Takano- 

 machi lies just on the northern side of the water- shed, which here 

 divides the basins of the Fuji-kawa and Shinano-gawa. Immediately 

 to the south the high mountains are crossed by a pass -1,500 feet 

 high ; and on the other side of this pass lies Nagasawa (3,100 feet), 

 where an observation of Dip was made. This Dip ( see Appen- 

 dix 1j) is remarkable for its smallness, being half a degree sjualler 

 than the Dip at Takanomachi, and a whole degree smaller than the 

 Dip at Kofa. In fact, just where it is most mountainous, there are 

 to be found the greatest magnetic irregularities. It is impossible of 

 course in the circumstances of the case to decide as to whether heis'ht 

 itself has a direct influence on the values of the magnetic constants. 

 The volcanic nature of the rocks is more than enouirh to account for 

 all irregularities. 



Another very interesting grinip of stations is the Korean group. 

 Here there are three [)rincipal stations, Wakwan, Mêlio, and Pusan 

 ( Nos. 62, Go, ()4 ) ; but quite a number of observations were made at 

 points in the near neighb(.)urhood. These are given in the complete lists 

 in Appendix B. Excepting Meho, all these stations lie on the shores 

 of Pusan Harbour. This harbour is formed by a bay opening to the 

 south with a large island lilting up fully half the entrance. On a 

 shar[)ly projecting cape pointing towards the northwest end of the 

 island lies Wakwan, the Foreign Settlement. At the head of the bay, 

 some 3 miles to the north is Pusan itself; while due east from 

 Wakwan about 3 miles across the bay is Kurosaki with Kurosaki Cape 



* These heights are estimated from aneroid observations made during the survey, taken 

 ill combination with the daily charts of the meteorological office, which furnish the sea-level 

 readings of pressure for the whole of Japan. 



