PLATE XII. 



Fig. 1. — The head of the Na-jyu plain (cfr. PI. XI. fig. o) near Tam-yaug 

 i'i$- 1^) looking southwest wards towards Na-jyn. The distant 

 mountain range faintly seen beyond tlie plain is Uöl-chhyul-sau 

 (p. 65, cfr. PI. XI. fig. 1) of Yöng-am. Page 7(3. 



Fig. 2. — Ivoang-jyu (jft JW), the magisterial town of South Chyöl-la-Do. It 

 is located in a basal granitic hollow of Mu-teimg-san (cfr. PI. XI. 

 fig. 3) which is l)uilt up of sheets of porphyrite. This view is 

 taken from the outer gate leading eastwards to the inner one, 

 within which there is nothing l)ut confused groups of thatclied 

 cottages like those seen in the foreground (p. 75). 



Fig. :>. — The cliff of Chyök-söng-jiu {iff j^ ^0) beyond the river of the same 

 name, exposing a basset of a complex of orfchogneiss conformably 

 overlaid by a psamraitic sericite-schist of the Kang-jin type (cfr. 

 PL VIE. fig. 1. and p. 51), This is the prolongation of the belt 

 of Kang-jin. The road leads tln-ough a Avind-gap of excellent 

 rock exposures to the Pi-hong-chhi pass (p. 7<S). 



