+-------------------+----------+-----------+-----------+------------+ | | | | Of 100 | | | | | | parts of | Diminution | | | | Water | water | in bulk | | | | absorbed | absorbed | during | | | | by 100 | there | drying of | | | Specific | parts | evaporate | 100 parts | | | gravity. | per cent. | in four | moist | | | | | hours | soil | | | | | at 66 deg. | | +-------------------+----------+-----------+-----------+------------+ | Siliceous sand | 2.753 | 25 | 88.4 | 0.0 | | Calcareous sand | 2.822 | 29 | 75.9 | 0.0 | | Light clay | 2.701 | 40 | 52.0 | 6.0 | | Stiff clay | 2.652 | 50 | 45.7 | 8.9 | | Heavy clay | 2.603 | 61 | 34.9 | 11.4 | | Pure clay | 2.591 | 70 | 31.3 | 18.3 | | Carbonate of lime | 2.468 | 85 | 28.0 | 5.0 | | Humus | 1.225 | 190 | 20.5 | 20.0 | | Gypsum | 2.358 | 27 | 71.7 | 0.0 | | Garden soil | 2.332 | 96 | 24.5 | 14.9 | | Soil from Hoffwyl | 2.401 | 52 | 32.0 | 12.0 | | Soil from Jura | 2.526 | 47 | 40.1 | 9.5 | +-------------------+----------+-----------+-----------+------------+