OJ 5/16, [2] Handwritten draft letter from Schenker to Hertzka (UE), dated December 25, 1908

Schenker justifies his selection and treatment of instruments in the Instrumentations-Tabelle, with acid comments about the English, and dismissal of French contributions.

WSLB 33 Handwritten letter from Schenker to Hertzka (UE), undated [December 31, 1908 or January 1, 1909]

Schenker defends his Introduction to the Instrumentations-Tabelle and the exclusion of the heckelphone.

Diary entry by Schenker for 16 December 1906

Diary entry by Schenker for 25 May 1907

Diary entry by Schenker for 11 February 1927

Diary entry by Schenker for 26 September 1928