What minor evils might arise from the contact were points of elaborate question.  The learned spoke of slight geological disturbances, of probable alterations in climate, and consequently in vegetation, of possible magnetic and electric influences.  Many held that no visible or perceptible effect would in any manner be produced.  While such discussions were going on, their subject gradually approached, growing larger in apparent diameter, and of a more brilliant lustre.  Mankind grew paler as it came.  All human operations were suspended.

There was an epoch in the course of the general sentiment when the comet had attained, at length, a size surpassing that of any previously recorded visitation.  The people now, dismissing any lingering hope that the astronomers were wrong, experienced all the certainty of evil.  The chimerical aspect of their terror was gone.  The hearts of the stoutest of our race beat violently within their bosoms.  A very few days sufficed, however, to merge even such feelings in sentiments more unendurable We could no longer apply to the strange orb any accustomedthoughts.  Its historical attributes had disappeared.  It oppressed us with a hideous novelty of emotion.  We saw it not as an astronomical phenomenon in the heavens, but as an incubus upon our hearts, and a shadow upon our brains.  It had taken, with inconceivable rapidity, the character of a gigantic mantle of rare flame, extending from horizon to horizon.

Yet a day, and men breathed with greater freedom.  It was clear that we were already within the influence of the comet; yet we lived.  We even felt an unusual elasticity of frame and vivacity of mind.  The exceeding tenuity of the object of our dread was apparent; for all heavenly objects were plainly visible through it.  Meantime, our vegetation had perceptibly altered; and we gained faith, from this predicted circumstance, in the foresight of the wise.  A wild luxuriance of foliage, utterly unknown before, burst out upon every vegetable thing.

Yet another day — and the evil was not altogether upon us.  It was now evident that its nucleus would first reach us.  A wild change had come over all men; and the first sense of pain was the wild signal for general lamentation and horror.  This first sense of pain lay in a rigorous constriction of the breast and lungs, and an insufferable dryness of the skin.  It could not be denied that our atmosphere was radically affected; the conformation of this atmosphere and the possible modifications to which it might be subjected, were now the topics of discussion.  The result of investigation sent an electric thrill of the intensest terror through the universal heart of man.