@article{oai:repository.dl.itc.u-tokyo.ac.jp:00000644, author = {DU, BOIS F.}, journal = {Transactions of the Seismological Society of Japan}, month = {}, pages = {90--94}, title = {THE CECCHI SEISMOGRAPH. A NEW MODEL CONSTRUCTED FOR THE OBSERVATORY OF MANILLA}, volume = {8}, year = {1885} }