(Chapter ad) Footnote 63:

In figure 1, k (left foot) marks the two sesamoid bones in the tendons of insertion of flexor hallucis brevis. In figures 2 and 3, k in the left and right feet, respectively, identifies the same two sesamoid bones. The k in these latter figures, while probably meant to identify the sesamoid bone in the tendon of m. fibularis longus, apears to mark tuberositas ossis metatarsalis quinti.