JOURNEYS THROUGH KOREA. 105 



on both sides become detached and lower. The one on the west 

 is masanite, that on the east, porphyrite. 



At Song-chyöng ^^ a road from Keui-j gang to Yang-saii crossed 

 onr rente. The open south is masanite terrane skirted on the 

 west by Kcum-jy'ông-san, the northwest slope of which is capped 

 witli an outlier of porphyrite and in this recess is seen tlie 

 monastery of Pöm-ö-sä "\ At the southeast foot of Keum-j'göng-san ^'^ 

 is located the hot spring (PL XXIV. Jig. 3) of Tong-m.l ^\ only 2 

 Inn from the eumnäi. Its balneal history is not exactly known, 

 but it has been a bath-resort since 1691. The mineral water 

 bubbles up from granitic sand (see ftg. 3) near the bank of a dry 

 rivulet, and is collected and led to the bath. I bottled some of 

 the water in 1901 and brought it home, and Prof. K. Tamba, 

 of The Imperial University of Tokyo, kindly made an analysis 

 of it which o-ave the folio wino- results. It was tlie first Korean 

 mineral water to be scientifically analysed. 



(Tramme per Litre 



Sodium, Na '. 2776 



Potassium, K 01015 



Calcium., Ca 0667 



Magnesium, Mg trace 



Chlorine, CI 4570 



Sulphuric Acid, SO3 06775 



Silica, Si O, .... : 1216 



Alumina, AL O, 0012 



Sssquioxide of Iron, Fe, O, 0020 



Solid matter 1.00869 



The water is colorless, transparent, odorless ; taste slightly 

 saline; reaction alkaline; temperature 76' C 



1) tS •?. 2) ^ ^. llij- See ante, -page 15. It is popularly callerl Fo-ma-sa. 

 3) See page 15. 4) It is proper to call it the hot spring of Keum-sau-dong. 



