306 T. Teeada and T. Matitzawa 



engineer members'^'^ of the Committee have been eagerly active in 

 stnclying the effects of shocks, both natural and artificial, upon diflper- 

 ent structural elements of various kinds of buildings. The Reports 

 and other ])ublications of the E.I.C. actually abound in the most 

 valuable results of these investigations. The names of K. Furuichi, 

 B. Mano, K. Tatsuno, I. Ishiguro, A. Inokuty, T. Sone, S. Tanabe 

 and Tat. Nakamura as the pioneers in this line of research, must be 

 remembered for ever by our countrymen in consideration of the merits 

 of their labours which have contributed directly or indirectly to the 

 mitigation of the injuries caused by the recent earthquakes. By their 

 eff'orts, a standard method of antiseismic construction ^^^ has been 

 gradually established. Actually, a number of brick buildings con- 

 structed after their designs have beautifully stood the most severe 

 test in the form of the recent Kwanto Earthquake, while, a remarkable 

 contrast, some of the reinforced concrete buildings of modern design 

 with no proper precaution against earthquakes have suffered consider- 

 able damage. If the fi-equent occurrence of past destructive earthquakes 

 has been useful for accumulating a mass of experience, that mass was 

 perhaps doubled by the recent case. The materials gathered in various 

 quarters, if fully systematized and properly discussed will probably 

 leave but a few problems to study on this side of practical seismology.^"^ 

 The theoretical or mathematical side of the matter has also not 

 been neo-lected. R. Pano's^^^ extensive theoretical discussions on anti- 



(1) For the studies on the effects of earthquakes and the precautions to be at- 

 tended to, see, inter alias : T. Nakamura, Ho., 3 (1895) ; 22 (1898). T. Nakaraura and T. 

 Sone, Ho., 11 (1897). Emori, Ho., 2 (1894). T. Sone., Ho., 53 (1906); 69 (1910). I. 

 Ishiguro, Ho., 69 (1910). S. Tanabe, 53 (1906); 69 (1910). E. Sano, Ho., 70 (1910). 

 Omori, Bull., 2 No. 2 (1908); Ho., 88C (1920); Seism. No., 3 (1922). S. Uchida, Ho., 

 80 (1915). S. Horikosi, Ho., 99 (1925). Kelsityo, Ho., 99 (1925). For experimental 

 investigations, see, among others: S. Tanabe, Pub. 3 (1900). E. Mano, Pub., 3 (1900). 

 Omori, Pull., 2 No. 3 (1908); 4, No. 1 (1910). 



(2) Among others: K. Tatsuno, Ho., 1 (1893). K. Tatsuno, Katayama. T. 

 Nakamura and T. Sone, Ho., 6 (1895). K. Tatsuno and T. Nakamura, Pub., 4 (1900). 

 E.I.C., Ho. 13 (1897). K. Sano, Ho., 83A, B (1917). 



(3) The abundant data obtained on the occasion of the recent great earthquake, 

 will be published as a volume of Ho. 100. Here we may refer to Matuzawa's inves- 

 tigation of the intensity distribution of the Kwanto Earthquake based on the damage 

 inflicted on wooden buildings, Ho. lOOA (1925). Imaraura's different investigations 

 into the same subject, especially in connection with the Ansei Earthquake, etc. and his 

 discussion on the inlluence of the nature of the underlying ground may be referred to. 

 Ho. 77 (1913); Journ. Geol. Soc, 30 (1924) 378, 



(4) Ho., 83A,B (1917). 



