-,4 Vol. XLIII., Art. r>. — S. Tsub.ji: 



recorded in our clironology. The land increased ])y more Umn, 

 300 JO Cst) on tlie western and northern sides of the island.'^ 



Several authors are of opinion that the area now occupied by 

 the villages of Motoniura'-' (formerly called Niijima'^) and Noma- 

 shi'^ was formed by this eruption. For such inference, however, 

 tlicre is no reliable basis, it apparently being merely etymological, 

 as Niijima (the former name of Motomura) means " new island " 

 {n/'i ï\e\\, Jhna island) and Nomashi means "field increase" (j?o 

 ii('1<l, inashi increase). 



(2) 1112 C^^H^) 



A 



An eruption of Oshima ? 



From November 18, 1112 (^^H^f^iVl :n-p H ) till the end of 

 the next month, detonations like thunder w^ere repeatedly heard 

 in Kyoto from an easterly direction."-^ 



Some authors consider that these were caused by an eruption 

 of Oshima. It is this eruption that was assumed by Nakamuea, 

 Teeada, and Ishitani'"''« to have resulted in the formation of the 

 great gap in the somma wall on its northeastern side (p. 28). 



(3) 1416 (li^ii'H^t-:) 



On September 2, 14 IC (ti^ii-H^A;i:ia j. an eruption of 

 Oshima took place. '^ 



(4) 1421 ({i^ii-A^FO 



On May 14, 1421 ()[l7lc1i-A^l^ri K B\ an eruption of Oshima 



5) ^^rlS (-^ diary written by Muxetada Nakatomi ['|>I5^;.i£1.]1- 



G) " I'lie Volcano of Osliima, its Past and Present," J'roceelinjs of the- Tôk'jô MatheihdÜco— 

 rinisixal Soddij, Vol. IV., 1008; Jovr. Oengr. Tôkijfi, îîo. 238, 1908 (in Japanese). 



