All round the globe, from time immemorial, those periodic phenomena known as solar and lunar eclipses have been occasions of mental disquietude and superstitious alarm. Though now regarded as perfectly natural and regular, they have seemed so preternatural
and irregular to the unscientific eye that we cannot wonder at the consternation which they have caused. And it must be confessed that a total obscuration of the sun in the middle of the day casts such a gloom over the earth that men not…