The Toilet Papers

You can give back to nature those raw materials we now regard as "waste." This book, written by a leading authority on appropriate technology, offers homeowner plans for several types of dry toilets, compost privys and greywater systems. Van der Ryn also discusses the history and philosophy of turning organic wastes into a rich humus, linking us to the fertility of the soil and ensuring our ultimate well-being. --- from book's back cover