Hours of Exercise in the Alps is a book written by John Tyndall in 1871. The book is a personal account of Tyndall's experiences while exploring the Alps, including his observations of the natural world and the physical challenges of mountain climbing. In the book, Tyndall describes his travels through the Swiss and Italian Alps, including his ascent of the Matterhorn, one of the highest peaks in Europe. He also writes about his encounters with local...