I got at least one loophole, from which men can snipe, for
every section? Have I pointed out to Section Commanders the portion of
the enemy's trench they are responsible for keeping under fire, and
where his loopholes are?

19. Have my men always got their smoke helmets on and are they in good
order?

20. Are the arrangements, in case of gas attack, complete and known to
all ranks?

21. Are the orders as to wearing equipment carried out?

22. Are my men using wood from the defences as firewood?

23. Are my men drinking water from any but authorized sources?

24. _I am here for two purposes: To hold this line under all
circumstances, and I do as much damage as possible to the enemy? Am I
doing all I can to make this line as strong as possible? Am I as_
OFFENSIVE _as I might be with organized snipers, sniperscopes, rifle
grenades, catapults, etc., and patrols?_

Defensive Measure Against Gas Attacks.

I. Introduction.

A. General Considerations:

In the absence of suitable means of protection the poison gases used
in war are extremely deadly and the breathing of only very small
quantities of them may cause death or serious injury. This being the
case, it is essential that not the slightest time should be lost in
putting on the anti-gas device on the gas alarm being given.

It cannot be too strongly insisted on that the measures to meet
hostile gas attacks afford _perfect protection_, and if they are
carried out properly no one will suffer from gas poisoning.

The whole basis of protecting troops against gas lies (a) in keeping
the appliances in perfect working order; (b) in learning to adjust
them rapidly under all conditions, and (c) in ensuring that every man
is given immediate warning. These results can only be attained:

(1) By frequent and thorough inspection of all protective
appliances.
(2) By thorough instruction and training in their use.
(3) By every man understanding and complying with all standing
orders on the subject of defense against gas.

If these are effectually carried out, there is nothing to fear from
hostile gas attacks. Officers must impress this on their men, as an
important object of all anti-gas instruction should be to inspire
complete confidence in the efficacy of the methods which are adopted.

B. Nature of Gas Attacks:

(1) GAS CLOUDS:

This method of making a gas attack is entirely dependent on the
direction of the wind. The gas is carried up