clanking of machinery where men are tunneling the mountain or
constructing a canal to unite oceans; or, again, in the laboratory where
the microscope is revealing the form of the snow crystal. One man is
watching the movements of the heavenly bodies as they file by his
telescope, while another writes a proclamation that makes free a race of
people. Another man is leading an army into battle, while some Doctor
MacClure is breasting the storm in the darkness as he goes forth on his
mission of mercy.

=Manifestations of life.=--These manifestations of life men call trade,
commerce, history, mathematics, science, nature, and philanthropy. And
men write these words in books, and other men write other books trying
to explain their meaning. Then, still others divide and subdivide, and
science becomes the sciences, and mathematics becomes arithmetic, and
algebra, and geometry, and trigonometry, and calculus, and astronomy.
Here mathematics and science seem to merge. And, in time, history and
geography come together, and sometimes strive for precedence.

Thus, books accumulate into libraries and so add another to the many
elements of life. Then magazines are written to explain the books and
their authors. The motive behind the book is analyzed in an effort to
discover the workings of the author's mind and heart. In these
revelations we sometimes hear the rippling of the brook, and sometimes
the moan of the sea; sometimes the cooing of the dove, and sometimes the
scream of the eagle; sometimes the bleating of the lamb, and sometimes
the roaring of the lion. In them we see the moonbeams that play among
the flowers and the lightning that rends the forest; the blossoms that
filter from the trees and the avalanche that carries destruction; the
rain that fructifies the earth and the hurricane that destroys.