(Chapter 12) Footnote 22:

The remainder of the legend for D was rewritten as follows in the 1555 edition: “It is also provided for a small nerve [n. adducens] (d next to a in figs. 1 and 2, chapter 2, book 4) which we were the first to discover begins next to the base of the fifth pair of nerves [modern VI, VII, VIII cranial nerves] of the brain. That small nerve appears to be brought through its own foramen (a little later in its own series it will be labeled H); it drops out of the skull cavity into the eye socket, extends via the foramen marked D into the muscles just mentioned and the muscle [m. pterygoideus medialis] (D in the 6th table of muscles) concealed in the mouth which will be counted the third of the muscles that move the lower maxilla. Indeed this foramen, besides providing a convenient point of egress on its outside for the beginning of the temporal muscle that is brought out of here also, elegantly provides at the same time a path for the phlegm flowing out of here to the large foramen, labeled F [fissura pterygomaxillaris et fossa pterygopalatina] in the fourth figure of the sixth chapter, extending into the cavity of the nostrils.”