抄録
1. We investigated on the sedimentation volume of some diluvium soils, known as Allitic soils, 2. For electronmicroscopy the soil colloids from the above soils were selected. 3. From the results of these investigations we inferenced the dispersion system of soil colloid as follow : colloidal part of top soils was in "Sol" state, while that of sub soils was in "Jelly" state. And in a part of sub soil we could recognise the homogenous (non structural) mass, which was considered as a "Gel" type material produced in an early stage of chemical weathering.
