DE VEL OP ME NT OF SEISMOL OG Y IN JAPAN 309 



contributions made by tlie geologists, tliough we are fully aware of 

 our incompetency to do justice even to tbe remarkable of their works, 

 even if the space would have allowed us to comment upon them at 

 some length. 



Since the earlier days of the existence of the E.I.C., B. Koto^^^ 

 contributed a number of valuable papers on the geological and geo- 

 tectonic studies of some of the destructive earthquakes, which stand as 

 landmarks among the pages of the Reports of the E I.C. His paper 

 on the geological structure of the Tyugoku*^-^ has been a revelation to 

 seismologists. He also drew an elaborate plan^"'^ of the complete 

 volcanological survey of Japan which has been and is still being 

 carried out by successive generations of young and competent geologists 

 under his guidance. The results of these investigations are to be 

 found in the volumes of the Reports of the E.I.C., in Japanese, of 

 which we refrain from citing here the list of reference. They will 

 afford most precious sources of data for future seismologists and 

 geophysicists, not to speak of their proper geological and volcanological 

 merits. After his retirement trom the University, Koto has been ever 

 active in his own field of research, and we may be allowed to hope 

 that his investigations into the recent earthquakes of Kwanto and 

 of Tazima will bring forth many new facts of importance for 

 seismology. 



N. Yamasaki's*^'^ investigations on the Eikuu Earthquake, N. 

 Fukuchi's^-5^ ^^ ^}^Q Oosima Earthquake, K. Aomi's*^*^^ and R. Ohasi's*^"^ 

 on the Akita Earthquake and S. Tsuboi's*^*^ on the Oomati Earthquake 

 must be mentioned as inexhaustible magazines of useful informations. 

 The recent great earthquake has naturally increased our list of litera- 

 ture considerably. To cite only the Re])ort of the E.I.C , No. 100 B, 

 it contains the most valuable contributions by N. Yamasaki, T. Kato, 

 K. Inouye, and Z. Suzuki. 



(1) Journ. Coll. Sci., 5 Art., 10 (1892) 295; Ho., 8 (1896); f>i (19UG) ; 69 ^1910). 



(2) Ho., 63 (1909). 



(3) Pnb.. 3 (1900). 



(4) Ho., 11 (1897). 

 (5; Ho., S3 (1906). 



(6) Ho., 82 (1915). 



(7) Ho., 82 (1915-. 



(8) Ho., 98 (1922). 



