Another source, in various formats:

https://standardebooks.org/ebooks?query=darwin&sort=default&...

This is quite a treasure trove, thanks for posting!

I kind of fear that there is an ongoing degradation of various information/knowledge sources on the Internet, with the constant attacks on Wikipedia, and other archive sources. I suppose it's inevitable given we're in the information warfare era, and also amplified with the capabilities of LLMs.