(4) LIGAMENTS OF THE MENISCI.--There are five of these, connecting the menisci with the femur or tibia. One (Fig. 60, _e_) passes from the dorsal edge of the medial meniscus (_c_) transversely across the anterior crucial ligament (_g_) to the proximal end of the tibia nearer the lateral side. A second (Fig. 60, _f_) passes from the dorsal margin of the lateral meniscus (_d_) transversely beneath the anterior crucial ligament (_g_) to the proximal end of the tibia nearer the ventral side and medial border. A third (Fig. 61, _f_) passes from the ventral margin of the lateral meniscus obliquely across the anterior crucial ligament (_c_) to the lateral side of the medial condyle of the femur. The fourth (Fig. 61, _e_) is small, passing from the medial angle of the ventral border of the lateral meniscus distad to the popliteal notch. The fifth passes from the ventral border of the medial meniscus laterad beneath the posterior crucial ligament to the proximal end of the tibia, nearer the ventral and lateral sides. =Articulations between the Tibia and Fibula.=--At the proximal end the fibula is as it were suspended from the distal side of the overhanging lateral tuberosity of the tibia by strong ligamentous tissue. The capsule of the joint is formed by an extension of the capsule of the knee-joint which passes between the tibia and fibula on the ventral side. Forming the dorsolateral wall of this extension is a strong, thick ligament which passes directly from the head of the fibula to the lateral surface of the lateral tuberosity of the tibia. A second more delicate ligament passes from the head of the fibula dorsoproximad to the tubercle laterad of the crest of the tibia, bridging a groove through which passes the tendon of M. extensor longus digitorum. The tibia and fibula are connected throughout their length by an =interosseus membrane=. This is broad and very thin in its proximal part, narrower and thicker distad.