Second Variety is freely available [2] on the Internet Archive, via Project Gutenberg.
[1]: https://en.wikipedia.org/wiki/Second_Variety
[2]: https://archive.org/details/secondvariety32032gut
I think (or at least hope) that's not a spoiler for anyone who hasn't read it yet - it's worth reading!
Second Variety is freely available [2] on the Internet Archive, via Project Gutenberg.
[1]: https://en.wikipedia.org/wiki/Second_Variety
[2]: https://archive.org/details/secondvariety32032gut