This happens more often than not, especially in translated books, those which have had, over time, more than one editor, translator, and/or publisher. Are not book copyrights expired after 100 years published? I’m not sure… but the internet is mainly to blame for these discrepancies in texts, some people being simple thieves and manipulators of other writers’ work, for no good reason, of course… Anyone can download a book nowadays, change a few words, or even whole paragraphs, whatever, and then re-post their versions back onto another website that offers free up/downloading of any book (i.e. Scribd). It is always best to go with a first edition-and an actual book in your hands-when you truly care about reading an author’s original writing! (The Internet is almost going gone, bye bye, so download and save what things you may want to keep… The future is/will be APPS ONLY on tablets and phones. The World Wide Web caught what it was originally meant for, or Covid, lol. It costs around $30,000 to create a simple app today, whereas personal websites are free, with many disappearing every day.