nts, which is the limit of the ardois
keyboard.

The position is with the flag or other appliance held vertically, the
signalman directly facing station with which it is desired to
communicate. The "dot" is to the right of sender, embracing an arc of
90 deg., starting with the vertical and returning to it. The "dash" is a
similar motion to left. "Front" is downward directly in front and
instantly returned to vertical; it indicates a pause or conclusion.

[Illustration: CONVENTIONAL FLAG SIGNALS]

For communication between the firing line and the reserve or commander
in rear, the subjoined signals (Signal Corps codes) are prescribed and
should be memorized. In transmission, their concealment from the enemy's
view should be insured. In the absence of signal flags, the head dress
or other substitute may be used.

Letter of If signaled from the If signaled from the
Alphabet rear to the firing line firing line to the rear

A M Ammunition going forward Ammunition required

C C C Charge (mandatory at all Am about to charge if no
times) instructions to the
contrary

C F Cease firing Cease firing

D T Double time or "rush" Double time or "rush" or
hurry

F Commence firing Commence firing

F L Artillery fire is causing Artillery fire is causing
us losses us losses

G Move forward Preparing to move forward

H H H Halt Halt

K Negative Negative

L T Left Left

O What is the (R. N., etc.?) What is the (R. N., etc.?)

(Ardois and Interrogatory Interrogatory
semaphore
only)

. . - - . . What is the (R. N., etc.?) What is the (R. N., etc.?)

(All methods Interrogatory Interrogatory
but ardois
and semaphore)

P Affirmative Affirmative

R Acknowledgment Acknowledgment

R N Range Range

R T Right Right

S S S