""Notes on Spa: Or Observations on Its Chalybeate Springs"" is a book written by Thomas Cutler in 1871. The book is a comprehensive guide to the spa town of Spa, located in Belgium. The author provides detailed information about the town's famous chalybeate springs, which are believed to have medicinal properties. The book includes descriptions of the various springs and their mineral content, as well as the history of the town and its use as a health...