K. The posterior tibial nerve continued from the middle branch of the sciatic, and extending to K, behind the inner ankle. L. The posterior (short) saphena vein. M M. The fascia covering the gastrocnemius muscle. N. The short (posterior) saphena nerve, formed by the union of branches from the peronaeal and posterior tibial nerves. O. The posterior tibial artery appearing from beneath the soleus muscle in the lower part of the leg. P. The soleus muscle joining the tendo Achillis. Q. The tendon of the flexor longus communis digitorum muscle. R. The tendon of the flexor longus pollicis muscle. S. The tendon of the peronaeus longus muscle. T. The peronaeus brevis muscle. U U. The internal annular ligament binding down the vessels, nerves, and tendons in the hollow behind the inner ankle. V V. The tendo Achillis. W. The tendon of the tibialis posticus muscle. X. The venae comites of the posterior tibial artery. PLATE 66. A C D E F G H I indicate the same parts as in Plate 65. B. The inner condyle of the femur. K. The plantaris muscle lying upon the popliteal artery. L. The popliteus muscle. M M M. The tibia. N N. The fibula. O O. The posterior tibial artery. P. The peronaeal artery. Q R S T U V W. The parts shown in Plate 65. X. The astragalus. [Illustration: Left leg, showing muscles, blood vessels and other internal organs.] Plates 65, 66 COMMENTARY ON PLATES 67 & 68. THE SURGICAL DISSECTION OF THE ANTERIOR CRURAL REGION, THE ANKLES, AND THE FOOT. Beneath the integuments and subcutaneous adipose tissue on the fore part of the leg and foot, the fascia H H, Plate 67, Figure 2, is to be seen stretched over the muscles and sending processes between them, thus encasing each of these in a special sheath.