The first species has generally been described under the name of the fungous ulcer, or ulcer with hypersarcosis. The granulations are soft and indistinct. They are imperfectly formed, and, therefore, do not possess the pointed appearance which they exhibit in health; nor have they equal powers of action, nor longevity. They are formed quickly, and rise to a greater or less height above the level of the surrounding skin. The margins are generally soft, tumid, and of a dull red colour. The discharge, if there be no carious bone, is tolerably thick, and of a white colour, and not in greater quantity than would be yielded by a healthy ulcer of the same size: The quantity is even sometimes less. The pain, unless when a bone is diseased, is seldom considerable. This species admits of two varieties. In the first, the granulating process is increased, in consequence of some affection of the action, which is independent of any mechanical cause. In this case, the fungus is generally pretty firm, but commonly pale, and the discharge tolerably good. In the second variety, the granulating process is increased, in consequence of some mechanical irritation underneath, such as a piece of carious bone; and, in this case, the fungus is softer, and less firm; it is of a redder and more lively or fiery colour, and is sometimes covered, in particular parts, with spots of lymph; it bleeds upon the slightest touch. The sore is generally painful, and the discharge thin, serous, and of a fœtid smell, whilst we can frequently perceive at least one small foramen on the surface which leads down to the bone, and through which it may be felt to be rough. Out of this is discharged a thin matter from the bone, of a brownish colour, somewhat like soup, and more or less different from the discharge from the rest of the surface. These luxuriant granulations, however, must not be confounded with those which, at a later period, come from the bone itself, after it has begun to ulcerate. These are generally of a more florid red colour, though sometimes pale, and rise up either through chinks of the bare caries, or from such portions as are denuded by a previous exfoliation. They have, in general, a more pointed appearance than those which arise from the soft parts, so that, in many cases, the fungus resembles the surface of a strawberry, being rough. This variety may be induced quickly, the bone being injured, at the same time that the soft parts are affected; but, at other times, and perhaps more frequently, the bone becomes diseased, in consequence of the continuance of a simple ulcer immediately over it; as, for instance, on the tibia. In this case, the ulcer, which perhaps was formerly indolent, now changes its nature.