(Chapter 29) Footnote 3:

The reverse imagery of engraving has again confused Vesalius’ account. The pubis is at the lower right in figure two and the lower left in figure three. What Vesalius calls the “hipbone” (coxendicis os) roughly corresponds to what is the ischium (< Gk. i)sxi/on, “hip joint”) in modern anatomy, though the actual hip socket or acetabulum is made up of all three of the bones that comprise the hipbone or os coxae: ilium, ischium, and pubis.