Earthquake Waves

THE observations at p. 385, on the operation of self-resisting tide-gauges of the U. S. Coast Survey, in illustrating the phenomena of earthquake waves, suggest the expediency of the same means being adopted in the basin of the Mediterranean. This could possibly, by a little correspondence and agitation, be effected at Naples, Athens, Constantinople, and Alexandria. The Turkish and Egyptian Governments are very likely to listen to any representations on behalf of the cause of science. Although the Mediterranean is considered tideless, there is a daily fluctuation of two feet in parts of the Levant, but what is material is that earthquake waves are known to have been manifested at Smyrna.