attention will be directed to two points in the phenomena—first, whether the corona retains its symmetry, or continues concentric with the black circle of the moon during the totality j and, secondly, whether, during the same period, the red flames change their position on the circumference of the moon. If there be a want of symmetry, and if the flames change their place, the evidence is conclusive that the appendage belongs to the sun.
Another point of interest will be the search for the newly-discovered planet Vulcan. It is expected that it will be readily found, from our knowlege of its approximate place.
To make amends for the imperfection of the testimony of the human eye in such unusual circumstances, it is intended to employ an artificial substitute, which wall record the impression with due calmness and fidelity. This is to be done by applying a sensitive photographic surface to the telescope, instead of the human retina. In other words, photographic pictures of the eclipse are to be taken, and under Mr De La Kue's superintendence, we may expect all that skill and experience can effect We are persuaded that many, beside professed astronomers, will seize this opportunity of beholding the grandest spectacle in nature. And why should they not? It is not a matter specially belonging to the astronomer. It involves no profound calculations, nor demands any delicate astronomical methods.
