140 



Vol. XrJIL, Art. 6. — S. Tsuboi: 



60 y 33 



OIÏ i * SCTS9 



■Fig. 42 Biitbymetric map of the environs ot Ôshima (after Kaval Chart of Uydrc^raphie Office 

 Imperial Jaiianese Navy). Soundings in fathoms. 



