It is suggested that the most practical early application of the Madison waters is in community space heating with the local hot waters considered as a municipal commodity. The general design of such a community system is discussed along with its cost, means of financing, and life expectancy. Legal questions and state statutes that are pertinent are cited and the life expectancy of the entire Madison resource and equipment to expoit the resource are considered. (MHR)

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Baltimore quadrangle including results of data interpretation, significance factor profile maps, stacked profiles, and histograms.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Richmond quadrangle including results of data interpretation, significance factor profile maps, stacked profiles, and histograms.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Washington quadrangle including results of data interpretation, significance factor profile maps, stacked profiles, and histograms.

Final report documenting a high-sensitivity airborne radiometric and magnetic survey of the Baltimore, Washington, and Richmond quadrangles including background information, a description of methods, data reduction and analysis, and data presented in maps, tables, and graphical forms.