_Bureau of Public Roads_ Thomas H. MacDonald, _Chief_. _Bureau of Agricultural Economics_ Nils A. Olsen, _Chief_. _Bureau of Home Economics_ Louise Stanley, _Chief_. _Plant Quarantine and Control Lee A. Strong, _Chief_. Administration_ _Grain Futures Administration_ J. W. T. Duvel, _Chief_. _Food, Drug, and Insecticide Walter G. Campbell, _Director of Administration_ Regulatory Work, in Charge_. _Office of Experiment Stations_ --------, _Chief_. _Office of Cooperative Extension Work_ C. B. Smith, _Chief_. _Library_ Claribel R. Barnett, _Librarian_. U. S. GOVERNMENT PRINTING OFFICE: 1930 For sale by the Superintendent of Documents, ---- Price 10 cents Washington, D. C. * * * * * Transcriber Note Minor typos have been corrected. Illustrations were moved to prevent splitting paragraphs. Figure 19 was moved adjacent to the directions and specifications on Page 24. Due to space considerations in the text only version, emphasis of column headers were sometimes eliminated and some of the tables were rearranged. Produced from files generously made available by USDA through The Internet Archive. All resultant materials are placed in the Public Domain. End of the Project Gutenberg EBook of USDA Farmers' Bulletin No. 1227: Sewage and sewerage of farm home, by George Warren