(4) Action to be taken by a man who has inhaled gas or whose eyes are suffering from its effects. (Sgd) Herzog Albrecht von Wurtemburg. _Appendix 1A_ _Headquarters VI Army. IV B No. 19388_ _Notes_ (1) A hostile gas attack is only possible when the wind is blowing toward our trenches and then only in cloudy weather or darkness. A gas attack cannot be carried out when the wind is blowing in the other direction. (2) None need fear a gas attack. The fire of our artillery which in its retired position remains unaffected by the combined fire of our infantry machine guns and hand grenades, breaks up the clouds and prevents the enemy from following it up. Further the respirator affords complete protection, it should therefore be put on immediately a gas cloud appears, and fire should be opened against the latter. (3) The gas cloud can approach with great rapidity, therefore the respirator should be rapidly and correctly adjusted. Every man must learn by repeated practice to adjust his respirator quickly. (4) The respirator must always be kept in perfect order, they are only effective when damp; the anti-gas solution can be obtained from Medical personnel. Every man is responsible that his respirator is ready for use. (5) When the gas cloud appears, it is imperative that every man remain in his place and not take shelter in dug-outs and not withdraw to a flank or to the rear. (6) In case the respirator is lost or becomes unserviceable a substitute should be extemporized immediately, a cloth containing damp earth or a damp cloth should be firmly pressed on nose and mouth. A makeshift respirator is better than none. (7) Should any man inhale the gas the Medical Officers have apparatus ready at the dressing stations which at once banish the ill effects. (8) Gas does not injure the eyes, at the most it causes temporary irritation. _Appendix 2_ _H. Q. 2nd Foot Artillery Brigade No. 4 B 430 Secret_ INSTRUCTIONS IN THE CASE OF A HOSTILE GAS ATTACK In the case of a hostile gas attack, in addition to opening the heaviest possible fire, the main effort must be directed toward preventing the gas cloud from reaching our lines, or at any rate breaking it up to such an extent that it is harmless. This result is best obtained by creating upward currents of air which are most easily produced by means of highly inflammable material placed close in front of our position. The most suitable materials for this purpose are hay, straw, old sacks, wood shavings, etc., soaked in paraffin, etc., so that they can be readily ignited even in wet weather. On the approach of the gas cloud the fire must be lighted by some reliable means of ignition. According to a statement of a prisoner the French intend to combat the gas cloud by the ignition of black powder. _Appendix 3_ _H. Q. 2nd Foot Artillery Brigade B No. 430 15 Secret_ Notes on the protective Measures to be taken in case of a gas attack. 1 PREPARATIONS.