On Hail is a book written by Francis Albert Rollo Russell and published in 1893. The book is a scientific study of hail, its formation, and its effects on the environment. The author provides a detailed analysis of the physical properties of hail, including its size, shape, and density. He also discusses the different types of hail, such as soft hail and hard hail, and the conditions under which they are formed. In addition to the scientific aspects...