ellent form, easily admitting of subdivision as well as union
into larger masses.

A single battalion of four companies, with a field-officer, will
compose a good body for a garrison, for a separate expedition, or
for a detachment; and, in war, three regiments would compose a good
brigade, three brigades a division, and three divisions a strong
cavalry corps, such as was formed and fought by Generals Sheridan
and Wilson during the war.

In the artillery arm, the officers differ widely in their opinion
of the true organization. A single company forms a battery, and
habitually each battery acts separately, though sometimes several
are united or "massed;" but these always act in concert with
cavalry or infantry.

Nevertheless, the regimental organization for artillery has always
been maintained in this country for classification and promotion.
Twelve companies compose a regiment, and, though probably no
colonel ever commanded his full regiment in the form of twelve
batteries, yet in peace they occupy our heavy sea-coast forts or
act as infantry; then the regimental organization is both necessary
and convenient.

But the infantry composes the great mass of all armies, and the
true form of the regiment or unit has been the subject of infinite
discussion; and, as I have stated, during the civil war the
regiment was a single battalion of ten companies. In olden times
the regiment was composed of eight battalion companies and two
flank companies. The first and tenth companies were armed with
rifles, and were styled and used as "skirmishers;" but during 'the
war they were never used exclusively for that special purpose, and
in fact no distinction existed between them and the other eight
companies.

The ten-company organization is awkward in practice, and I am
satisfied that the infantry regiment should have the same identical
organization as exists for the cavalry and artillery, viz., twelve
companies, so as to be susceptible of division into three
battalions of four companies each.

These companies should habitually be about a hundred one men
strong, giving twelve hundred to a regiment, which in practice
would settle down to about one thousand men.

Three such regiments would compose a brigade, three brigades a
division, and three divisions a corps. Then, by allowing to an
infantry corps a brigade of cavalry and six batteries of
field-artillery, we would have an efficient corps d'armee of
thirty thousand men, w