Fig. 5. Clay swelling up when placed in water and overflowing from the egg-cup into which it was put - Lessons on Soil - 12 - Edward J. Russell

Fig. 4. Clay was plastered over a square piece of board and completely covered it. After drying for a week the clay had shrunk and cracked Fig. 6. Landslip in the Isle of Wight

Fig. 5. Clay swelling up when placed in water and overflowing from the egg-cup into which it was put