VOL. III.
Gray, T. Steady Points for Earthquake Measurements. 11 pages, 3 plates.
Milne, J. Experiments in Observational Seismology. 53 pages, 1 plate, tables.
— The Great Earthquakes of Japan. 38 pages, 1 plate, many tables.
Perry, J. Theory of a Rocking Column. 4 pages.
Knipping, E. Earthquake of July 25, 1880, with Dr. Wagener’s Seismometer. 4 pages.
Ewing, J. A. Earthquake Observation at three or more Stations, &c. 4 pages.
— Records of three recent Earthquakes. 6 pages, 3 plates.
— Earthquake of March 8, 1881. 8 pages, 1 plate.
Milne, J. Horizontal and Vertical Motion in Earthquake of March 8, 1881. 8 pages, 3 plates.