Horkheimer’s projected 1930s masterwork was a book on dialectical logic, drafted with Marcuse’s help.

Evidence

Horkheimer himself put all his writings of the 1930s under the heading of `dialectical logic’. … This was the book on dialectics, or dialectical logic, which he had already wanted to write when he was in Europe. He had brought Marcuse, who was the first to come to join him, from Geneva to the United States in 1934 to help him with it. — Rolf Wiggershaus, The Frankfurt School, 197

Categorization

• DEFINE: Identifies the umbrella concept — dialectical logic — under which Horkheimer filed all his 1930s writing.
• QUESTION: The dialectics book was never completed as such — check whether it collapsed into Dialectic of Enlightenment.
• XREF: connects to: Horkheimer planned a mimeographed volume of the dialectics fragments. — Rolf Wiggershaus, The Frankfurt School: Its History,…, 346; Horkheimer planned the dialectics book from the New York suburbs in 1938 — Rolf Wiggershaus, The Frankfurt School: Its History,…, 1037
• yield-rescued: below the book’s yield-target cutoff, included anyway for connecting to: Horkheimer planned a mimeographed volume of the dialectics fragments. — Rolf Wiggershaus, The Frankfurt School: Its History,…, 346; Horkheimer planned the dialectics book from the New York suburbs in 1938 — Rolf Wiggershaus, The Frankfurt School: Its History,…, 1037