110 K. HONDA, T. TEBADA, Y. YOÖHIDA ANL> i>. ISITANJ. 



F. Omori who favoured lis with valuable instruction and with 

 the records of numerous earthquake sea waves. We also wish 

 to express our thanks to Assist. Prof. A. Imamura, and to Mr. 

 M. Sugiyama of the Military Staff, who kindly placed valuable 

 mareograms at our disposal. Lastly, our cordial thanks are 

 due to Messrs. S. Iwamoto, N. Watanabe, T. Hirata, Y. Inouye 

 and T. Fukuda who have been zealous cooperators in the course 

 of our observations. 



