PI. XXII. 



Graphs showing the variation of Annual mean sea-level at the different 

 tide-gauge stations. Each ordinate indicates the height of the standard 

 bench mark above the mean sea-level. 



Jwoialri 



ISOO 19U 



Variation of mean oea-]evel (1900-1922): 



( 1 ; - (4) in the Pacific coast, (,5) - (8) ia the Japan Sex coast, (2) at ALiiratnbo. 



