""The Value of Pure Water"" is a book written by George C. Whipple in 1907. The book is an in-depth analysis of the importance of clean and pure water in our daily lives. Whipple, who was a renowned sanitary engineer, provides a comprehensive study of the different sources of water, their quality, and the methods of water purification. The book is divided into four parts, each covering a different aspect of water purification. The first part discusses...