|
| 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 |
+-------------------+----------+-----------+-----------+------------+

+-------------------+-------------------------------------------+------------+
| | Quantity | Power of |
| | of | retaining |
| | hygrometric water absorbed | heat. |
| | by 77.165 grains of the soil spread on | Calcareous |
| | a surface of 141.48 square inches. | sand, |
--------------------+----------+----------+----------+----------+ 100. |
| | 12 hours.| 24 hours.| 48 hours.| 72 hours.| |
--------------------+----------+----------+----------+----------+-------------
| Siliceous sand | 0 | 0 | 0 | 0 | 95.6 |
| Calcareous sand | 0.154 | 0.231 | 0.231 | 0.231 | 100.0 |
| Light clay | 1.617 | 2.002 | 2.156 | 2.156 | 76.9 |
| Stiff clay | 1.925 | 2.310 | 2.618 | 2.695 | 71.1 |
| Heavy clay | 2.310 | 2.772 | 3.080 | 3.157 | 68.4 |
| Pure clay | 2.849 | 3.234 | 3.696 | 3.773 | 66.7 |
| Carbonate of lime | 2.002 | 2.387 | 2.695 | 2.695 | 61.8 |
| Humus | 6.160 | 7.469 | 8.470 | 9.240 | 49.0 |
| Gypsum | 0.077 | 0.077 | 0.077 | 0.077 | 73.2 |
| Garden soil | 2.695 | 3.465 | 3.850 | 4.004 | 64.8 |
| Soil from Hoffwyl | 1.232 | 1.771 | 1.771 | 1.771 | 70.1 |
| Soil from Jura | 1.078 | 1.463 | 1.540 | 1.540 | 74.3 |
--------------------+----------+----------+----------+----------+------------+

|------------------+------------+-----------------|
| | | Q