Jour.Sci.Coll..Vol.XXm.,Art.5. Plate VI. 



BIWA LAKE 



Depth in shaku (S.3 shaku = 1 meter). 



1. iDiazu 



2. Kaizu 



3. Shiotsu 



5. Nagahama 9. Seta 



6. Hikoné 10 Ötau 



7. Okinoshima 11. Katada 



13. Katsuno 

 14 Funaki 



Chikubushima 8. Chômeiji 12. Wani 



