""Runner of the Mountain Tops: The Life of Louis Agassiz"" is a biographical book written by Mabel L. Robinson. It tells the story of Louis Agassiz, a renowned naturalist, geologist, and teacher who lived in the 19th century. The book follows Agassiz's life from his childhood in Switzerland to his travels around Europe and North America, where he studied and collected specimens of plants, animals, and fossils. The author also delves into Agassiz's...