su N DA STRAI T 



Depths. 



O U SOnuJumis 50 to tSO. 230 to 500. 500 ttfnrarde. 



Seaboard swept by the tvtTJ'e- during the eruption of KraJcatau in ÏS83 . 

 The lighthouses co-e indicated^ by red dots. 



NEW TrORK. D. APPLETOH & C? 



