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ADVANTAGE AND DISADVANTAGE OF SALTS.
by them to other regions, and are deposited on flat beaches, far from their native cliffs.
FORMATION OF ICEBERGS.
The saltness of the sea rendering it more dense, necessarily renders it more buoyant, than fresh water. This is obviously a great advantage to man in the matter of commerce. A ship does not sink so deep in the sea as it does in a fresh-water lake; hence it can carry more cargo with greater facility. It is easier to swim in salt than in fresh water.
The only disadvantage to commerce in the saltness of the sea is the consequent unfitness of its water for drinking. Many and harrowing are the
