282 



SEKIYA AXD OMORI. 



maximinn nccelerntioiis f(ir some of these Isitter era'tlujiinkes :is observed 

 on the free snrfice ground to those ol)served in the ])it are collected in 

 the following t:i1)le, average values being nsed when a number of 

 waves liave been calculated for a single earthquake. 



