(Chapter 26) Footnote 13:

In the 7th table of muscles, 1, 2, 3 = m. adductor pollicis, caput transversum, and caput obliquum; in the 6th table of muscles, l = m. opponens pollicis. k = m. abductor pollicis brevis, m. flexor pollicis brevis. This parenthesis was deleted from the 1555 edition.