FYI, I started a project to turn all the volumes of the British Statutes At Large into plain text: http://statutes.org.uk/ Naturally, absences and OCR errors, but it's getting there. Incidentally, seems like there was mulberry tree legislation in Virginia; for example https://books.google.co.uk/books?id=osROAQAAIAAJ&pg=PA121&lpg=PA121