12 AET. 2. — B. KOTO: 



My route, with occasional deviations, followed the coast usually 

 genial, sunny, and dotted with the Camellia jajionica ; but I 

 happened to have chosen the worst and the coldest part of the 

 year, the first half of February, when the region was buried under 

 snow, especially in the Clnjbl-la-Do portion, and the rapid Sijbm- 

 J ill-gang was then entirely frozen, appearing like a glacier stream. 

 This unfavorable climatic condition greatly limited my geological 

 observations. 



Tr-sAN I started from Fu-san (Pii-san in Korean) on January 24th, 



1901. Opposite to Fii-san lies Chyöl-li/öng-do or "Deer Island" 

 (PL I, I^ig. 1), called Maki-no-shima in Japanese, 08 km long and 

 26 km broad, formerly a haunt of deer, and for sometime devoted 

 to the breeding of horses which, the historical records tell us, the 

 Koreans at one time sent to the Chinese Emperors as annual 

 tribute. 



The island is a rather high hill (303 m) having the appearance 

 of a dissected volcano, the western half of it together with the 

 bottom of the supposed crater having been blown off almost down 

 to the edge of the narrow strip of water which separates the island 

 from our settlement of Fasan. This outward look is in a certain 

 degree justified by the occurrence of volcanic rocks whose 

 inclined bedding perfectly assimilates the inner structure of a 

 strato-volcano. The beds strike south-east by south, while at 

 the east end they are almost horizontal. 



The effusives and their derivatives, whicli constitute the 

 entire island, are thick banks of various shades of greenish color 

 and of different types of rocks. 



(1) One rock is uuiformly dark-gray aud compact with few 



