JOURNEYS THROUGH KOREA. 185 



eutectophyre, graniteporphyiy and finally, into aplitic granite. 

 If the facts stand as I have here outlined them in regard to the 

 relative position of the two, the granitic rocks must have been 

 pressed out before the porphyrite ; but many field relations show 

 that the granitic rock must be laccolithic intrusions capped 

 with the sheet of porphyrite, as is well seen in the environs of 

 Fu-san ^\ This and many other contradictory facts lead the writer 

 into a labyrinth of doubts. The facts will be presented while 

 speaking of laccolithic intrusions of neog rani tes. 



As I have already given brief descriptions'' of porphyrites, I 

 shall now enumerate the essential features of felsophyres and 

 their allies. 



In order to make clear the relations that exist between the 

 rock varieties of the neogranite family, I give in the following a 

 short table with brief remarks : 



1) See ante, pp. 15 and 105. 



2) See ante, page 175. 



