The coast a zone of transition--The inner edge--Shifting of the inner
edge--Outer edge in original settlement--In early navigation--In
colonization--Inland advance of colonies--Interpenetration of land and
sea--Ratio of shore-line to area--Criticism of the
formula--Accessibility of coasts from hinterland--Accessibility of
coasts from the sea--Embayed coasts--Contrasted coastal belts--Evolution
of ports--Influence of offshore islands--Previous habitat of
coast-dwellers--Habitability of coasts as a factor in maritime
development--Geographic conditions for brilliant maritime
development--Scope and importance of seaward expansion--Ethnic contrast
between coast and interior peoples--Ethnic amalgamations of
coastlands--_Lingua franca_ a product of coasts--Coast-dwellers as
middlemen--Differentiation of coast from inland people--Early
civilization of coasts--Progress from thalassic to oceanic
coasts--Importance of geographic location of coasts--Historical decline
of certain coasts--Complex interplay of geographic factors in
coastlands.