Page:Great Neapolitan Earthquake of 1857 Vol 2.djvu/391

326 We must reduce the former to the latter.

The difference, therefore, between the times noted by him, and at the observatory, is equal to 2m 16s. The high probability is, therefore, that Signor Fiodo's clock was stopped by the first tremulous movement, (having been specially prepared by him, that it should be readily stopped,) and that the clocks at the Observatory, were stopped by the second which occurred shortly after, with a little interval between, (see Guiscardi, Part II.) these clocks having been arranged to go and not to be stopped by a shock.

We may, however, take the transit time from both data—