he socks will be large enough to permit free
movement of the toes, but not so loose as to permit of wrinkling.
Darned socks, or socks with holes in them, will not be worn in
marching.

Until the feet have hardened they should be dusted with foot
powder, which can be obtained at the regimental infirmary, before
each day's march. Clean socks should be worn daily.

As soon as possible after reaching camp after a day of marching
the feet should be washed with soap and water, and the soldier
should put on a dry pair of socks and his extra pair of shoes
from his surplus kit. If the skin is tender, or the feet perspire,
wash with warm salt water or alum water, but do not soak the feet
a long time, as this, although very comforting at the time, tends
to keep them soft. Should blister's appear on the feet, prick
and evacuate them by pricking at the lower edge with a pin which
has been passed through the flame of a match and cover them with
zinc oxide plaster applied hot. This plaster can be obtained
on request at the regimental infirmary. If serious abrasions
appear on the feet, or corns, bunions, and ingrowing nails cause
trouble, have your name placed on sick report and apply to the
surgeon for treatment. Cut the toe nails square (fairly close
in the middle, but leaving the sides somewhat longer), as this
prevents ingrowing nails.

CHAPTER V.

EXTRACTS FROM INFANTRY DRILL REGULATIONS.

UNITED STATES ARMY, 1911.

[Corrected to April 15, 1917.]

SECTION 1. DEFINITIONS.

ALIGNMENT: A straight line upon which several elements are formed,
or are to be formed; or the dressing of several elements upon
a straight line.

BASE: The element on which a movement is regulated.

BATTLE SIGHT: The position of the rear sight when the leaf is
laid down.

CENTER: The middle point or element of a command.

COLUMN: A formation in which the elements are placed one behind
another.

DEPLOY: To extend the front. In general to change from column
to line, or from close order to extended order.

DEPTH: The space from head to rear of any formation, including
the leading and rear elements. The depth of a man is assumed
to be 12 inches.

DISTANCE: Space between elements in the direction of depth. Distance
is measured from the bark of the man in front to the breast of
the man in rear. The distance between ranks is 40 inches in both
line and column.

ELEMENT: A file, squad, platoon, company, or larger body, forming
part of a