1. A New Soil Testing Apparatus
2. ‘Strength and deformation of sand measured in an independent stress control cell’, Stress-Strain Behaviour of Soils, Proc. of the Roscoe Memorial Symposium, Cambridge, 1971, pp. 285-373.
3. ‘A new true triaxial apparatus’, Stress-Strain Behaviour of Soils, Proc. of the Roscoe Memorial Symposium, Cambridge, 1971, pp. 330-339.
4. Study of Failure Envelope of Soils