In the skin nodules we have only once found bacilli in the epidermis; this was in a nodule with many fissures in the epithelium, and partly covered with exudation. We have not been able to decide from our preparations whether the bacilli lie in the epithelial cells or only _between_ them, possibly enclosed in wandering cells.[3] Touton found bacilli in the epithelium of the sweat glands, and he and Unna in the hair sheaths also; this situation of the bacilli we have never observed with certainty, and it can only be exceptional, and can scarcely give origin to a “constantly flowing bacterial spring,” as Unna suggests. As a rule, no bacilli are found in the epithelium. [3] In a nodule, with exudation, which we have recently examined, we have found bacilli in the epithelium, and there are in several places distinct leucocytic nuclei in the bacillary groups, thus showing emigrated cells with bacilli in the epithelium. Of the presence of bacilli in affections of the eye, it may be said in general that everywhere, where infiltration is present, bacilli are found. In the clouding of the upper part of the cornea described above, which we recognise as keratitis punctata, there are found groups of granularly degenerated bacilli close under the epithelium. This we have only once been able to determine on the living by excision of a lamella of the cornea; in this case the affection was, according to our own view, disappearing, because the bacilli were granularly degenerated. This corresponds with the fact that this characteristic affection of the cornea always ultimately disappears; the granules are probably absorbed. We have already stated that blood vessels precede the nodule into the cornea, and that they are surrounded by round cells. Here, as in the middle of the nodule, the corneal corpuscles are found apparently intact or filled with brown granules (_Plate VI, Fig. 3_, and _Plate VIII, Fig. 1_). The same is the case in nodules in the iris, in which one finds the stellate cells intact (_Plate VIII, Fig. 2_). Round cells are also found in the spaces in the cornea near the nuclei of the corneal corpuscles (_Plate VIII, Fig. 3_). All this appears to us definitely to indicate that at least most of the cells of the growth are migrated white blood corpuscles.