This section brings together Edgar Morton's files on individual small consultancies not included in EMP/3, together with research material. Similar material is to be found in EMP/3/589-665, although this material is in general earlier than the work documented there, the bulk dating from the 1920s and 1930s.
Following the arrangement of the material in the preliminary outline list, where possible the papers have been grouped together by broader area and these then arranged in an alphabetical sequence.
- EMP/4/A: Bath and Portland Stone, 1929-1946;
- EMP/4/B: Dams, n.d.;
- EMP/4/C: Foundations, 1943-1973;
- EMP/4/D: Landslips, ?1886-1962, n.d.;
- EMP/4/E: Mining Subsidence, 1953-1965;
- EMP/4/F: Quarrying Industry, 1932-1933;
- EMP/4/G: Rainfall, 1897-1975;
- EMP/4/H: Road Stone, 1930-1951;
- EMP/4/I: Rock Salt, 1926;
- EMP/4/J: Silicosis, 1929-1950;
- EMP/4/K: Site Reports and Investigations, 1927-1969;
- EMP/4/L: Slate, 1930s;
- EMP/4/M: Soil Mechanics, 1940s-1964;
- EMP/4/N: Stone Preservation, 1927-1964;
- EMP/4/O: Stone Testing, 1927-1964, n.d.;
- EMP/4/P: Underground Water, 1933-1958, n.d.;
- EMP/4/Q: Water Supply, 1910-1971;
- EMP/4/R: Miscellaneous Consultancies and Advice, 1929-1973;
- EMP/4/S: Miscellaneous Correspondence, 1925-1970;
- EMP/4/T: Miscellaneous Material, 1891-1896, n.d.;
- EMP/4/U: Maps and Plans, n.d.