effusion, but to periarticular oedema and enlargement of the bones. The pain and tenderness are most severe at the line of junction of the articular surface; the swelling begins at that point, and extends widely, especially over the dorsal aspects of the wrists and elbows, the joints most liable to this form, although any articulation may suffer. The joint is also hot, it may be pale, but is usually more or less red, and occasionally presents the appearances of severe phlegmonous inflammation, and excites a sensation of pseudo-fluctuation.[271] The affection may resolve, or fibrous ankylosis may ensue, or very rarely suppurative destruction of the articulation may occur, although such issue has been denied (by Fournier, Rollet, Voelker). It is remarkable that, like the other forms of gonorrhoeal rheumatism, the acute inflammatory form is not accompanied by a general febrile disturbance at all proportionate to the severity of the local disease. A Fourth form occurs as a Chronic Hydrarthrosis. Although occasionally accompanying the polyarticular variety, it is frequently observed independently, and is then often monoarticular, and affects especially the knee; however, both knees sometimes are involved. The ankle- and elbow-joints suffer much less commonly than the knee. The effusion into the articulation takes place insidiously, although rapidly producing considerable enlargement of and fluctuation in the joint, without local heat, redness, or tenderness, and often with but little or no pain or pyrexia. It is not as often associated with inflammation of the tendinous sheaths and bursæ or of the eye as the polyarticular form, but it is apt to be very slow in resolving, and may last for two or three months, a year, or several years, and in scrofulous patients may degenerate into white swelling. The formation of pus in the joint is very rare. It occurred twice in 96 cases tabulated by Nolen; hydrarthrosis obtained 12 times; and serous synovitis 64 times; chronic rheumatism or arthritis deformans 5 times; tumor albus once.[272] A Fifth form of gonorrhoeal rheumatism, like other varieties of so-called secondary rheumatism, involves predominantly the tendons and tendinous sheaths, the bursæ and periosteum, sometimes without, but far more frequently in association with, affection of the joints. Pain, sometimes severe and increased by movement and pressure and aggravated at night, with local swelling and tenderness, are the symptoms. In their fixity and persistence, their tendency to relapse, and their chronic course these periarticular affections resemble gonorrhoeal inflammation of the joints. Gonorrhoeal bursitis is often severe enough to resemble phlegmon, but it does not end in suppuration; it is most common in the bursæ covering the patella, the olecranon, and especially in that under the tendo Achillis and the deep one covering the inferior tuberosity of the os calcis; but any of the bursæ may suffer from gonorrhoeal rheumatism. The periosteum