April 27, 1883.] 



SCIENCE. 



329 



ACTIVE JAPANESE VOLCANOES.^ 

 The following list of Japanese volcanoes 

 contains onl}' those which are either active 

 now, or of which records of eruptions exist, or 

 which have evidently been active in recent 

 times, as shown hj their solfataras. The num- 

 ber of extinct cones is not known : especiallj' 

 is this the case in Yesso. 



The number of known volcanoes in the 

 Kurile Islands is 52 (of these, 12 are active) ; 

 in Yesso and adjacent islands 19 (active 12) ; 

 in Hondo, Iviushiu, and adjacent islands, (30 

 (active 24). In all there are 131, of which 48 



. are active. These figures are somewhat dif- 

 ferent from those ordinarily stated. The lati- 

 tudes given do not claim a.uy great accuracj', 

 but are i^ut in to give an approximate idea of 

 the positions : they are taken from the best Jap- 

 anese maps. The names Yama, San, Take, 

 Nobori, are synonymes of mountain. 



The active volcanoes are most numerous 

 between 138° and 140° E. long, and the par- 

 allels 38° and 38°. It is therefore not strange 

 that Tokio, situated within these limits, should 

 have experienced 377 earthquake-shocks in the 

 five years from 1876 to 1881 . Dr. C. Gottsche. 



LIST OF JAPANESE VOLCANOES IN ACTIVITT. 



I letter dated Tokio, Jan. 12, 



ated by Professor Jules Marc 



