98 B. KOTÖ. 



Concerning the geographical distribution of the glaucophane- 

 bearing rocks in Japan, a few words may still yet be said. As it is 

 already stated, the rock containing the primary one is of a tolerably 

 wide distribution; but the secondary glaucophane-rock is by far the 

 most extensive.* E. Naumann f has already pointed out the import- 

 ance of chlorite-schist among the crystalUne schists, and it is a startling 

 fact that nearly the half of what he called chlorite schist, turns out, on 

 microscopic examination, to be the glaucophane-amphibolite. It is no 

 wonder that such a rare rock as this, has been prodigiously developed 

 in this part of the world. 



Imperial University, Tokyo, October, 1886. 



* We have still to mention the other localities : — Yoshinobu village, Tosa-göri, Tosa pro- 

 vince ; Yamakami and Hashikura, both in the Kanra-gôri in the Közuke province, 

 t loc. cit. p. 9. 



