PLATE XVIII. 



Fig. 1, — Yiew toward t1io iiortJiP.ad in the direction of Sara-ga (^ ^) from 

 fin elevation of piedmont liills of the sandy, Lower /rjöno^-sano- 

 foriïiatioi), as seen in PI. XVII. fig. 2. It is a lonely tract covered 

 with grass and a few pines on rusty weathered rocks. The 

 eumnài lies in a hill depression beyond which is seen in the right 

 corner in the distance the Tai-kok-cJihi pass (PI. XVII. fig. 3). 

 See page 86. 



Fig. 2. — The north descent to Song-am from the Tai-kok-chhi pass (PI. 

 XVII. fig. 3) on the terrane of green marl and sandstone of the 

 higher horizon of the Lower Kyöng-sang formation with varying 

 easterly dips. The pointed Knk-sa-bong (f^ fl||j ilif:) in front is 

 bnilt np of thick beds of strong conglomerate composed of the 

 gravels of gneiss and porphyrifce. It is the basal 1)ed making the 

 boundary of the non-volcanic Lower, and the volcanic Upper 

 Kyöng-sang formations (p. 87). 



Fig. 3. — View from a hill, south of Chhyang-nyöng, to tlie west, where one 

 has an excellent opportunity to survey tlie physiography of the 

 trench-like hilly land (PI. XVII. figs. 1, 2, 3) beyond the Nak-tong- 

 gang, being composed of the lower half of the Kyöng-sang 

 formation, (pp. 32, 133). Cfr. PI. XXXI. fig. 3. 



