2 ART. J. — B. KOTO : 



referred to both at home and abroad ^^ in works on the geology 

 and geography of Korea, sometimes being subjected to severe 

 criticism."' 



Deferring my rejoinder to these criticisms to another occasion, 

 I sliall here correct but two statements. 



IMoasieiir rProfesseiir L. Pervinquière, after giviug a faithful epitome 



of iny work, says : ' Mais je ne saurais dissimuler que cette 



théorie compliquée (of mouutain-formation by dislosation) ue force pas 

 la conviction. Il est un peu à crainder que l'auteur, cédant à l'instinct 

 d'imititiou qui est uae caractéristique de sa race, n'ait voulu appliquer 

 là des idées théoriques, émises à diverses reprises (et souvent d'une 

 manière peu heureuse) pour expliquer tel ou tel phénomène.' 



The learned Chef des travaux pratiques de géologie à la Sorbonne 

 probably means that I rather imitate the manner of Richthofen in ex- 

 plaining the mountain-building of Korea just as that great authority 

 explained the mountain-chains in the continental border of Eastern Asia. 

 It is well known that Prof. E. Suess'^^ considers the gigantic mountain- 

 chains in China and Eastern Siberia as the stern mass of the waves 

 of the earth's crust originating in the region near Lake Baikal, while 

 the late Prof. F. v. Richthofen^' looked at the same from another stand- 

 point, dividing each mountain-arc into two components, viz., the older 

 folded, equatorial component and the younger, ruptured, meridional one 

 The latter view is of special interest to me. 



1) a. F. V. Richthofen. Loc. cit. IV and V, 1903. 



h. Hobbs, ' Tectonic Geogrnx^hy of Eastern Asia'. American Geologist, Vol. XXXIV, 1!)04. 

 <•. Gallois, ' La structure de l'Asie orientale.' Annales de Géographie, No. 75, XIV" An- 

 née, 1905. 

 (1. Geographical Journal. London, 1903, Vol. XXII, p. 5G7. 

 e. Geological Magazine. London, 1903, p. 324. 



2) n. Per\'inquière, ' Constitution géologique et ressources minérales do la Mandchourie et 



de la Corée.' Itevue Scientifique, 1904, 5e Serie, Tome I, j). 552. 

 h. Lorenz, ' Beitrüge zur Geologie und Palajontologie von Ostasien.' I Theil. Zeitschrift 

 (1er Deutschen geologischen Gesellschaft zu Berlin, Bd. 57, 1905, S. 495. 



3) ' Das Antlitz der Erde.' Bd. III, Erste Hiilfte, 1901. 



4) ' Geomorphülügische Studien,' IV und V, 1903. 



