Though specific plans can not be sent in the absence of definite information, and though plans and specifications can not be prepared to meet individual requirements, the Division of Agricultural Engineering, Bureau of Public Roads, gladly gives such help as is possible. To those who contemplate installing sewerage works on farms and who furnish the information outlined under the caption "Field data," on page 52, plans, advice, or suggestions will be sent. Local requirements are frequently met or approximated by one of the designs on hand; working drawings in the form of blue prints will then be furnished. Sometimes the designs, slightly modified, may suit the needs. In other instances it is sufficient to send published bulletins or give written suggestions of a practical nature.