With regard to the alleged accretion, the case made is that the
mouth of the lagoon is now permanently closed, so that it has
become an inland water, The first answer to this argument is
that it is not proved that the facts are so. Upon the evidence it
is highly probable that the channel will, as heretofore, be opened
and closed periodically, as occurred in 1905. But, even if it
were shown to be permanently closed, I do not think that any
case of accretion is made out. The law as stated by Blackstone (2
Bl. Com., p. 262), is that "if this gain be by little and little, by
small and imperceptible degrees, it shall go to the owner of the
land adjoining. For de minimis non ewrat lew. . . . . But,
if the alluvion or dereliction be sudden or considerable, in this
case it belongs to the King; for, as the King is Lord of the sea,
and so owner of the soil while it is covered with water, it is but
reasonable he should have the soil, when the water has left it
dry." The word "imperceptible" refers to the slowness of the
additions to the soil. Assuming, then, that a moment has arrived
at which the mouth of the lagoon became permanently closed, the
suggested accretion is not an addition of an imperceptible quantity
of soil to the plaintiff's land, but of an area of many acres oceur-
ring at the moment of permanent closure, so that, according to the
plaintiff's contention, on one day the land belonged to the King
as Lord of the sea and on the next to the plaintiff. This is a
sudden and considerable alluvion or dereliction, and does not
operate to confer a title by accretion. The exact point is con-
sidered in an able argument in Mr. Hall's Essay (2nd ed., p. 115,
et seq.) the reasoning of which is I think conclusive.