Du Verney vs. Valsalva

In this narration, Dr. Pappas compares the first two books written solely on the ear: Traité de l'organe de l'ouie (Treatise on the organ of hearing, 1683), by Parisian physician, Guichard J. Du Verney (1648-1730), and De aure humana tractatus (Treatise of the human ear, 1704), by Antonio Maria Valsalva (1666-1723) of Bologna.

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Du Verney's book

Valsalva's book