Pavonia lactuca, with Polypes in Natural Position.

LIGHTHOUSE AND WATER-SPOUTS.
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[LIGHTHOUSE AND WATER-SPOUTS.]

A Lighthouse on a rocky shore is represented as just lighted, the twilight having become darkened by a sudden storm, during which the phenomena of "water-spouts" occur, which are represented to the left of the Lighthouse.


[CHAP. VI.]

THE AËRIAL AND TERRESTRIAL MIGRATIONS OF THE WATERS.