ly increased, and with a devotion unwavering and
constant as the polar star.

In order that the people at large might have the benefit of his
numerous discoveries, and his vast knowledge, he delivered at Berlin a
course of lectures, consisting of sixty-one free addresses, upon the
following subjects:

Five upon the nature and limits of physical geography.

Three were devoted to a history of science.

Two to inducements to a study of natural science.

Sixteen on the heavens.

Five on the form, density, latent heat, and magnetic power of the
earth, and to the polar light.

Four were on the nature of the crust of the earth, on hot springs,
earthquakes and volcanoes.

Two on mountains, and the type of their formation.

Two on the form of the earth's surface, on the connection of
continents, and the elevation of soil over ravines.

Three on the sea as a globular fluid surrounding the earth.

Ten on the atmosphere--as an elastic fluid surrounding the earth, and
on the distribution of heat.

One on the geographic distribution of organized matter in general,

Three on the geography of plants.

Three on the geography of animals; and

Two on the races of men.

These lectures are what is known as the Cosmos, and present a
scientific picture of the world--of infinite diversity in unity; of
ceaseless motion in the eternal grasp of law.

These lectures contain the result of his investigation, observation and
experience; they furnish the connection between phenomena; they
disclose some of the changes through which the earth has passed in the
countless ages; the history of vegetation, animals and men; the effects
of climate upon individuals and nations; the relation we sustain to
other worlds, and demonstrate that all phenomena, whether insignificant
or grand, exist in accordance with inexorable law.

There are some truths, however, that we never should forget:
Superstition has always been the relentless enemy of science; faith has
been a hater of demonstration; hypocrisy has been sincere only in its
dread of truth, and all religions are inconsistent with mental freedom.

Since the murder of Hypatia in the fifth century, when the polished
blade of Greek philosophy was broken by the club of ignorant
Catholicism, until today, superstition has detested every effort of
reason.

It is almost impossible to conceive of the completeness of the victory
that the church achieved over philosophy. For ages science was utt