4 public-domain works, free to read in full.
Each of these is out of copyright and free to read on Wordema, which presents a book one word at a time at a single fixed point, so your eyes never travel across the page. You choose the pace. No account and nothing to install.
Ordinary reading moves the eyes in short jumps, several times a second, hunting for the next word. Wordema removes the hunting: every word arrives in the same place. For long nineteenth century sentences in particular, many readers find it easier to stay with the thread. How it works.