The vibices were much larger than the petechiæ. Gotwald says that they covered the face as high as the nose, and from thence spread to the forehead, disfiguring the patient in a frightful manner. They did not appear till a short time before death. Often they appeared unexpectedly, shooting up like lightning from the breast to the face, in spots of various colours, blue, green, brown and yellow. Diemerbroeck describes them as oblong spots of a livid or black colour, like strokes drawn with a pen; sometimes they were larger, the biggest resembling the strokes of a whip. Russel takes notice of a kind of marbled appearance which took place at the height of the disease, or a few hours before death; the colours being a faint blue, and darkish red, both more or less obscure at times, but never bright. It was not permanent, vanishing in one place, without leaving any trace, and returning at short intervals. “The skin in various places was sometimes deformed by narrow streaks of reddish purple, or livid colour. When such took possession of the face they gave a frightful appearance to the countenance, and frequently made such an alteration in the features, and so completely disguised the patient, as to render him hardly _knowable_ by his acquaintance. A streak nearly of the same kind was sometimes observed darting from the edges of the buboes and carbuncles. The vibices or weals were much longer and broader, and more exactly resembled the marks left in the fleshy parts by blows or stripes; they were found chiefly on the thighs, buttock, and back, and made their appearance several hours before death, in some cases, but in others not till after. Large blue or purple spots, the _maculæ magnæ_ of authors, were sometimes observed with or without the vibices, a little while before the patient expired, but most commonly were discovered only on the corpse. Their figure in general was round, sometimes irregular.”