1 Table of Contents: “...Part 1: Establishment of the Vox Humana stop in pipe organ building. Some historical observations...”

2 Table of Contents: “... String -- Chapter 5: Violins and Bowed Strings -- Chapter 6: The Voice -- Chapter 7: Pipe Organs...”

3 Table of Contents: “... properties of wind instruments -- Manufacturing of tubes in metal for brass instruments and pipe organ...”