Introduction to geophysical methods in civil and environmental engineering; physical properties of soils, rocks and contaminated material. Seismic methods - field equipment and methods for seismic refraction. Properties of seismic waves. Cross-hole surveys, tomography and characterisation of bulk modulii. Seismic refraction interpretation methods. Borehole geophysics - field equipment and methods; caliper, electrical, fluid, nuclear and electromagnetic logs. Gravity and magnetic methods. Case histories describing the use of geophysical methods in geotechnical engineering and environmental investigation.