Abstract
The coagulation process of bubbles in the foam layer of sea water was studied and the following results were obtained.
1) During the period when the coagulation process of bubbles is dominant, the process can fairly well be treated by analogy with that of colloidal particles (Section 2, ii, iii).
2) The maximum diameters of bubbles at various times were calculated by the formula previously derived by the present author, namely p(x)=ABx, where p(x) is the frequency of a bubble, x the square of its diameter, and A and B are constants (Section 3).
