@article{oai:repository.dl.itc.u-tokyo.ac.jp:00000254,
 author = {Milne, John},
 journal = {Seismological journal of Japan},
 month = {},
 note = {application/pdf},
 pages = {0--0},
 title = {Prefatory Note},
 volume = {18},
 year = {1893}
}