engage the attention even of unprofessional
persons. These vast currents of air, which sweep round and round the
globe, in huge strips of more than twelve hundred miles in width, are
in a manner forced on every one's notice, from contributing to that
boundless interchange of the productions of distant regions by which
modern times are so agreeably distinguished from the old.

The great Monsoons, again, of the Indian and China oceans play almost
as important a part in this grand nautical drama along the coasts of
those remote countries. These great phenomena will be found to obey
precisely the same laws as their less fluctuating brethren the mighty
Trades; and hence springs one of the chief delights of science when
its study is conducted in a proper spirit. If the pursuit of truth be
engaged in with sincerity, phenomena apparently the most opposite in
character, for example, winds in different parts of the earth, but in
the same latitude, blowing in totally different directions at the same
season of the year, will always prove in the end illustrative of one
another, and of their common theory.

FOOTNOTES:

[2] On the renewal of their Charter, in 1833, the East India Company
ceased to be traders, and these noble ships no longer sail under the
Company's flag.

CHAPTER VI.

THE TRADE WINDS.

There are few things more curious in the history of human knowledge
than the establishment of extensive errors as to matters of fact, and
the perverse tenacity with which they retain their hold on the public
mind. In some cases it would almost seem that the pleasure which
springs from genuine philosophical inquiry is subordinate to that
which arises from the indolent process of taking things for granted.
This applies peculiarly to the phenomena of the Trade-winds,
respecting which many erroneous ideas are generally entertained. To
professional men these fallacies are calculated to prove extremely
mischievous; while even to persons not directly connected with the
sea, the existence of error may often be injurious: and, although it
is not very easy to explain these things in a popular way, I shall
attempt to give a description of the facts as they really exist.

The main characteristics may easily be described.

The great belt of the earth's surface, nearly three thousand miles in
width, lying between the tropics (from 23-1/2 deg. north to 23-1/2 deg. south
latitude), is the chief region of the Trade-winds; though in so