This book is intended to guide readers in the installation of sewage in farm homes. The main purpose of home-sewerage works is to get rid of sewage in such ways as (1) to guard against the transmission of disease germs through drinking water, flies, or other means; (2) to avoid creating a nuisance. What is the best method and what is the best outfit are questions not to be answered offhand from afar. A treatment that is a success in one location may be a failure in another. In every instance, decisions should be based upon field data and full knowledge of the local needs and conditions. An installation planned from assumed conditions may work harm. The householder may be misled as to the purification and rely on protection that is not real. He may anticipate little or no odor and find a nuisance has been created.