205 



Page 



Mäi-ka (One of the Great Hcuk-san Islands) 135 



Quelpart or Chyöi-jyu 136 



Hal-la-san, 137— 31 y ümj-uöl, the lauding point 138— A great 

 number of cones 139 — The active crater of Sö-s:iu and its 

 eruption in 1003 A.D. 141— Basaltic rocks 142— Climate 143. 



CHAPTER IV. Summary 144 



A. Climate ^^^ 



Bamboo forest, an indicator of climate 145— The mountain- 

 Ijarrier of the So-päik-san range, an important factor of climate 

 145_The east coast of Kyöng-samj-Do 145— The south coast 

 146— The coast of Clnjöl-la-Do 147— Tlie fog 147— Meteor- 

 ological Observatory at 3Ioh-pho 148. 



B. Orography - ^^^ 



Korea, a diagonal " liorst " 151— The diagonal So-päik-san 

 range 151— Hydrography 152. 



C. Recapitulation of the Geological Formations 153 



T. The Basal Gneiss 154 



Tlie Pong-gOi gneiss- 151— The Tomj-chking gneiss 155. 



II. The Kang-jin Mica-schist " • 1'55 



(a) Sericite-quartz-schist 156— (/>) The Mid-lw-sil inic;i-schist 

 157. 



III. The Pliyllite Series 1^7 



(«) The Tong-pok complex 158— Grai^hitoid at Kul-am 158— 

 The limestone-conglomerate 159— (?>) The Mu-an complex 159— 



