g their geographical knowledge on the sure basis
of mathematical science, of which it had hitherto been destitute.

The grand maxim of Alexander in his conquests was, to regard them as
permanent, and as annexing to his empire provinces which were to form as
essential parts of it as Macedonia itself. Influenced by this consideration
and design, he did not lay waste the countries he conquered, as had been
done in the invasions of Persia, by Cimon the Athenian and the
Lacedemonians: on the contrary, the people, and their religion, manners,
and laws were protected. The utmost order and regularity were observed; and
it is a striking fact, "that his measures were taken with such prudence,
that during eight years' absence at the extremity of the East, no revolt of
consequence occurred; and his settlement of Egypt was so judicious, as to
serve as a model to the Romans in the administration of that province at
the distance of three centuries."

The voyage of Nearchus from Nicea on the Hydaspes, till he arrived in the
vicinity of Susa (which we shall afterwards more particularly describe);
the projected voyage, the object of which was to attempt the
circumnavigation of Arabia; the survey of the western side of the Gulf of
Persia, by Archias, Androsthenes, and Hiero, of which unfortunately we do
not possess the details; the projected establishment of a direct commercial
intercourse between India and Alexandria; and the foundation of this city,
which gave a new turn and a strong impulse to commerce, as will be more
particularly shown afterwards;--are but a few of the benefits geography and
commerce received from Alexander, or would have received, had not his plans
been frustrated by his sudden and early death at the age of 33.

We have the direct testimony of Patrocles, that Alexander was not content
with vague and general information, nor relied on the testimony of others
where he could observe and judge for himself; and in all cases in which he
derived his information from others, he was particularly careful to select
those who knew the country best, and to make them commit their intelligence
to writing. By these means, united to the reports of those whom he employed
to survey his conquests, "all the native commodities which to this day form
the staple of the East Indian commerce, were fully known to the
Macedonians." The principal castes in India, the principles of the Bramins,
the devotion of widows to the flames, the descripti