Makeshift methods, materials, or devices should be avoided or used sparingly. Do not place a vent pipe in the top of a cesspool or septic tank if near a dwelling. Siphon chamber and siphon may be omitted in those rare instances where it is feasible to discharge into salt water or into a large stream already badly polluted. Disposal of sewage in a running stream should be a last resort. Such practice endangers water supplies downstream, and unless the volume and velocity of flow are good nuisance may be created in the vicinity. Do not neglect inspection and operation. Clean out settling tanks yearly or oftener. All pipe lines below ground should be marked with iron or stone markers to facilitate examination, repair, or extension of the system. There is a general but erroneous belief that the cost of sewerage is little in the city but almost prohibitive in the country. All personal and Realty properties in one eastern city represent a valuation of $10,382 per home, which pays $355 for sewers outside the cellar wall. An average farm in a Middle West State represents a valuation of $17,259. Is not the farmer justified in the small outlay required to dispose of the farm sewage? Because of the issuance of bonds and the apportionment of sewer assessments for a series of years the city dweller may have his burden distributed over a long period. The farmer does not pay interest on these obligations, and sewer work can be done more cheaply in the country than in the city. Safe disposal of farm sewage is not a passing fad but a vital necessity. Besides being an asset a good sewerage installation greatly promotes the wholesomeness and healthfulness of the farm. Moreover the benefits are far-reaching, because farm products go into every home, and farm and urban populations mingle freely. ORGANIZATION OF THE UNITED STATES DEPARTMENT OF AGRICULTURE January 6, 1930 _Secretary of Agriculture_ Arthur M. Hyde. _Assistant Secretary_ R. W. Dunlap. _Director of Scientific Work_ A. F. Woods. _Director of Regulatory Work_ Walter G. Campbell. _Director of Extension Work_ C. W. Warburton. _Director of Personnel and Business W. W. Stockberger. Administration._ _Director of Information_ M. S. Eisenhower. _Solicitor_ E. L. Marshall. _Weather Bureau_ Charles F. Marvin, _Chief_. _Bureau of Animal Industry_ John R. Mohler, _Chief_. _Bureau of Dairy Industry_ O. E. Reed, _Chief_. _Bureau of Plant Industry_ William A. Taylor, _Chief_. _Forest Service_ R. Y. Stuart, _Chief_. _Bureau of Chemistry and Soils_ H. G. Knight, _Chief_. _Bureau of Entomology_ C. L. Marlatt, _Chief_. _Bureau of Biological Survey_ Paul G. Redington, _Chief_.