A brief discussion of some physical characteristics of organisms will conclude our articles on “Home Studies in Chemistry and Physics.”

The abundance of metaphorical expressions even in common language, indicates the numerous resemblances between the living and inorganic worlds. Description and poetry are full of imagery. A metaphor implies a resemblance between objects, a simile suggests it, and a comparison states it.

THE DIONÆA, OR VENUS’S FLY-TRAP.

Thus to the human mind, the different departments of nature seem to reflect a light and beauty upon each other, even as the “earth-shine” lights the moon in the absence of the sun. The sky is a dome; the groves are temples; the sea moans and roars; the falling cataracts laugh and shout, and the calm lake is the smile of the Great Spirit. “Language,” says Dean Trench,[5] “is fossil poetry.” “Architecture is frozen music.”

Many of the forms of art and devices of human invention have been suggested by Nature. The Doric column was borrowed from some stately tree shaft. The ornamented capital of the Corinthian column was decorated by carved copies of the graceful acanthus leaves. Gothic architecture found its models in the tree tops of the arching forests.

A HUMAN HEART, SHOWING CHAMBERS AND VALVES.

Every experimenter in science is simply one who is inquiring of Nature for her analogies, truths, forms, forces, and machines; and like the wise and good mother that she is, she has granted many a pregnant suggestion to the busy brains of discoverers and inventors.