That is the newly published volume 16 of The Collected Works of F.A. Hayek, edited by Sandra J. Peart. Of course this is splendid from beginning to end, including Peart’s introduction, the letters, Hayek’s commentary, and assorted documents, and the book even contains three very nice poems written by Harriet Taylor.
Is Hayek here blaming Taylor for moving Mill in a collectivist direction? Is that the Straussian reading of this book and the reason why Hayek did it?
If there were a phrase for “one step above and beyond self-recommending,” this volume would get it.