Making of the Illustrations of the Natural Orders of Plants

This book has some kind of patch on P. 35:

https://archive.org/details/herballorgeneral00gera/page/n33

"A Catalogue of Additions"

Codes, and indications of what is inserted where.

although a long read, that's an outstanding article about how it was made; and the "final result" site itself is beautiful.

This would make an absolutely wonderful iPad app, too!