His published his most significant collection of war poetry, Tier rang gewaltig mit Tier (``Beast strove mightily with beast'') in 1920, in a limited edition of 1,000 copies. This short work of around 80 pages contains 60 poems based on the sonnet form, on themes of night and death. In _his_ 1985 book in German war poetry, Patrick Bridgwater, Emeritus Professor of German at the University of Durham, described Schnack's book as ``the best single collection produced by a German war poet in 1914-1918'', and one work, ``N*chtliche Landschaft'', as the ``best poem of the war written in German''. <sep>, Pronoun: his