Subject
2 free books about water, free to read online. Chapter 1 of any book is free, no account needed.
The Forms of Water in Clouds and Rivers, Ice and Glaciers
John Tyndall
The virtues of common water: or, The advantages thereof, in preventing and curing many distempers : Gathered From the Writings of Several Eminent Physicians, and Also From More Than Forty Years Experience
John Smith