82 ART. 3. — B, KOTO : 



within the narrow rift bay of Kagosliima, opposite and east of 

 the city of the same name, and separated from it by water 3.7 km. 

 wide and more than 25 fathoms deep (the maximum being 38). 

 On the southeast side of the island there was, before the recent 

 eruption, the still narrower channel (500 m.) of Seto, 30-40 

 i'athoms deep, where during the explosion of 1779 a floating sheet 

 of pumice, 5 feet thick, covered the whole stretch, so that two 



A 



te^rror-stricken islanders fled on foot to the opj^osite coast of Osumi, 

 while the third, following the two pioneers, sunk to the bottom 

 and was seen no more. This channel was completely choked up 

 by the lava-flows on February 1st (some say on the 29th January), 

 1914. 



The insular composite konide of Sakura-jima rises from a 

 depth of 100 fathoms, having the equatorial and meridional 

 diameters of 9.9 and 8.0 km. respectively.'^ It has a circumference 

 of 38.7 km., with an area of 75.6 sq. km., and a height of about 

 1,000 ?7i.,'' with graceful piano slope below 1000 7?z. all round, 



b. I. Friedlaender. ' Ueber einige jupanisclie "S'iükane.' Miftell. d. J). Gesell, für Natur- 

 uml Völkerkunde Ostasiens, Bd. XXII. Teil 2, S. 103, 1910. The author i>resents 

 briefly the views aud observations expressed by S. Watanabé. 



c. Yamasald-Sato, ' Geography of Japan,' Vol. VIII. p. 223, Tokyo, 1!)09. (Japanese) 



d. Uyéda, Salmra-jima before and after the Eruption of 1914.' Jour. Geoijr. Soc. 

 Tokyo, 1914, p. 431 et seq. (Japanese) 



1) These numbers refer to date prior to the eruijtion of Jan. 12th, 1914. 



2) The area and volume calculated by stud. E. Oda after Simpson's formula : 

 a. Area 75.59 sq. km. 



(71.90 „ „ after D. Sato) 

 h. Height traced on Contour-line. Volume above Sea-level. 



to 200 TJi 9.04 cub. km. 



200 „ 400 3.863 



400 „ 600 1.683 



600 „ 800 0.937 



800 „ 1,000 0.390 



1,000 „ top 0.036 



Total 15.949 cub. km. 

 It is nearly the same height as the volcano of Kaimon. The volume is one-si.'ity- fourth of 

 Tuji-san, the latter Vicing 1,025 cub. km. F. Ômori gives the figures 26.5 cub. km. for the 

 volume of Sakura-jima. 



