sentences:  Skelton wondered also whether the revisions in the far east were meant to represent Japan—they seem to show not only Honshu, but also Hokkaido and Sakhalin, omitted even from Oriental maps in the 15th century.In addition, the text uses a Latin form of Leif Ericson's name ("Erissonius") more consistent with 17th-century norms and with transmission through a French or Italian source.The Latin captions include several usages of the ligature "æ"; this was almost unknown in later medieval times (a simple "e" was written instead), and although the ligature was revived by Italian humanist scholars in the early 15th century, it is found only in documents of deliberately classicising humanist minuscule produced by Italian scribes, and never in conjunction with a Gothic style of script such as is seen in the map.