Hours of Exercise in the Alps: Enriched edition. A Victorian Mountaineer's Alpine Adventures, Scientific Observations, and Reflections on NatureJohn Tyndall0
Sound: Enriched edition. Exploring the Physics of Sound: A Study in Acoustics and Natural PhenomenaJohn Tyndall0
Hours of Exercise in the Alps: Enriched edition. Exploring the Alpine Majesty: A Mountaineer's Journey Through Nature and DangerJohn Tyndall0