William Walker 
The Hindu-Yogi System Of Practical Water Cure [EPUB ebook] 

This book is a health classic that covers topics such as water and prana, water as the basis for life, how much water to drink daily, repercussions of consuming too little water, overview of the organs of assimilation and elimination, how to remove toxins from the digestive tract, the importance of internal cleanliness, using the skin as an organ of elimination, how to take cleansing baths, wet pack treatments, sweat pack treatments, hydrotherapy and sexual vitality treatments.