1 | Changes in the phosphorus content of the sediment of Esthwaite Water and water quality in response to a decreasing input of sewage-borne phosphorus |
2 | Correspondence Relating to the Seismic Surveys of Lake District Water Bodies undertaken by Prof. Gerald Sargent in 1983 and 1987 |
3 | Letter of confirmation of geophysical surveys made in conjunction between Professor G.E.G. Sargent and the FBA 1983-1987 |