Abstract
In order to identify the factors which govern the dissolved chemical constituents of sea water, the author has measured the ignition loss of bottom mud and the consumption of dissolved oxygen, His findings are as follows:-
1. Relative analysis of ignition loss and consumption of dissolved oxygen shows that the two have a rational relation.
2. It is inferred therefore that the consumption of dissolved oxygen is effected mainly by inorganic colloids and organic humus colloids which are carried in by land water.
3. The degree of consumption of dissolved oxygen is larger in the middle of the inlet than at the mouth of the river, for which the various properties of the sediment of floating matter seem to be responsibles.
