Gray, T. Seismograph for Registering Vertical Motion. 3 pages, 1 plate.
Ewing, J. A. Seismometer for Vertical Motion. 3 pages, 1 plate.
Gray, T. Seismograph for Large Motions. 2 pages.
— Compensating a Pendulum to make it Astatic. 3 pages.
Palmer, H. S. Note on Earth Vibrations. 3 pages.
Kuwabara, M. The Hot Springs of Atami. 2 pages.
VOL. IV.
Milne, J. Distribution of Seismic Activity in Japan. 30 pages, 1 plate.
Wada, T. Notes on Fujiyama. 7 pages.
Casariego, E. Abella y. Earthquakes of Nueva Vizcaya in 1881. 23 pages, 2 maps.