In a letter from Odessa, 27 September 1901, to "Mr. A. Z. Rabinovitch, Poltava," Ahad Ha'am, as editor of HaShiloah, replies to AZR's letters and to a story he had sent. It reveals the same two axes we saw with Bialik: editorial filtering of what AZR submits, and the historiographical project. Igrot Ahad Ha'am · Ben-Yehuda
Ahad Ha'am is willing to print AZR's story with corrections, but conditions this on knowing whether it is invented or based on real people, a question of permission to publish, precisely the consideration that occupied Bialik:
"The story in general is not 'of the best,' but I can print it with some changes and corrections. For this, however, I must first know whether it is truly nothing but an imaginary sketch, or whether it contains 'a thing that happened'… I must know the event and the people, so that I may know whether I have permission to print it." Ahad Ha'am to A. Z. Rabinovitch, Odessa, 27 September 1901. Igrot Ahad Ha'am.
The surprising find: AZR proposed to compose a history book, and Ahad Ha'am, "in a whisper," reveals that he himself had once thought of writing exactly such a book, not for the multitude of "householders" but for the learned and the maskilim who read Hebrew; but his work and his health prevented it, to the point that he could not even take upon himself the supervision of the book:
"Your proposal regarding the composition of a history is good in principle, and in a whisper I will tell you that there were days when I myself thought to set about the task of composing a short history book, not for the multitude of 'householders,' but for the multitude of the learned and the maskilim among readers of Hebrew. But my various labors did not allow me to load upon myself such a work… To my heart's sorrow, I cannot even take upon myself the supervision of the book you propose to compose." Ahad Ha'am to A. Z. Rabinovitch, ibid.
Ahad Ha'am's tribute essay for AZR's 70th birthday (Haaretz, 1924; see "Criticism and Reception") documents the peak of the intellectual bond: AZR's essay "Nathan the Wise" (HaShiloah VII, 561), which toppled from its pedestal the idol of the Haskalah. Ahad Ha'am relates that AZR himself feared his words were "great heresy," and that he reassured him in a letter that he was not alone in his opinion, and refers to Igrot Ahad Ha'am, vol. II, p. 126. In other words, the correspondence also included a letter of intellectual reassurance, beyond the editorial matters.