It has been already observed (at page 68), that the cartilages are occasionally swelled and softened in cases of chronic inflammation; and it now remains to notice instances in which they become hypertrophied or atrophied, apparently without inflammatory action. Although these affections are not likely to come often under the treatment of the surgeon in civil life, yet they are of much importance to the naval or military practitioner, since an accurate knowledge of them will lead him to institute a careful inquiry when a man complains of inability to sustain the fatigue of marching with the burden of a heavy knapsack; and they are of considerable interest in a physiological point of view, because they tend to show the inherent vitality of cartilage, and that it is liable to serious organic changes quite independently of diseased action in the surrounding tissues. Some examples of hypertrophy of cartilage, principally affecting that of the patella, have been described by Mr. Gulliver, and figured in the third fasciculus of drawings from the Army Anatomical Museum. In these the cartilage is swelled so as to form a ridge across the articular surface of the bone, the hypertrophied part being perfectly smooth, except where its continuity is interrupted by irregular fissures, as if the perpendicular cartilaginous fibres were split into bundles of variable size and shape. These cases occurred in young and middle-aged men who died of pulmonary consumption; and it is probable that the disease would be more frequently found, if it were more frequently looked for, since it does not seem to have been accompanied by any change in the surrounding parts, and would perhaps only be indicated by weakness of a joint rendering it unfit for severe work.