It is an exciting piece of technological history that Heinrich Henne presents with "The Water Wheels and Turbines - Their Calculation and Construction." His book reflects the current state of technology around the turn of the century. Henne carefully introduces fundamental knowledge about hydropower systems before explicitly addressing the construction of water wheels and turbines. At the end of the book, there are also numerous examples of water wheel and turbine systems in Germany from that time. This is a meticulously edited reprint of the original edition from 1903.