Originally Posted by Belril Duskwalk
My pet theories on that are that Jones doesn't necessarily look like she looks. Rather that:
1) Jones looks as the viewer's mind perceives her.
2) Jones appears as she chooses. The comic is demonstrating Jones with the form we are familiar with to make it easier for us to understand, rather than trying to explain to us that each previous form was also Jones.
I personally prefer Theory 2.
If she could choose what form she appears in, why would she have been "found out"
in the late 19th/early 20th century?