forces of the I.G., however free from suspicion might be the mentality and morals of those directing its activities, constitutes, in itself, a serious menace. It is, if you will, a monster camouflaged floating mine in the troubled sea of world peace, which the forces of reconstruction have left unswept. The existence of this giant monopoly raises vital military and economic questions, which are, indeed, "The Riddle of the Rhine."

Impersonal Examination of Fact.—In a sound examination of the subject it becomes necessary to examine the activities of our former enemies very closely. Even adopting a mild view of the case, their reputation has not been unattacked, and is not left untarnished. We, however, have no desire to renew such attacks, but we wish our statement to be coldly reliable. National and international issues are at stake which require a background unprejudiced by war emotion.

Placed in a similar predicament, in reporting to his Government of the methods of German economic aggression in the United States of America, Mr. Mitchell Palmer, the Alien Property Custodian, expressed himself as follows:

"I do not advocate any trade boycott out of spirit of revenge or in retaliation for injuries done to the United States. I do not want to continue the war after the war. I am for peace. I believe that the great overshadowing result which has come from this war is the assurance of peace almost everlasting amongst the peoples of the earth. I would help to make that an absolute certainty by refusing to permit Germany to prosecute a war after the war. The military arm of her war machine has been palsied by the tremendous hammering of the allied powers. But her territory was not invaded, and if she can get out of the war with her home territory intact, rebuild a stable government, and still have her foreign markets subject to her exploitation, by means no less foul and unfair than those which she has employed on the field of battle, we shall not be safe from future onslaughts different in methods, but with the same purpose that moved her on that fateful day in July when she set out to conquer the world."

Ours is a fair standpoint. Let us know the facts of the chemical war into which Germany impelled us. Let us examine its mainsprings, in conception and action, see how far they can be explained in terms of pre-war Germany, and how far they remain ready to function in the much desired peace which they threaten. If the result be unpleasant, let us not hide our heads in the sand, but exercise a wise vigilance, choose what precautions are available and consistent with our plans for world peace.

A Critical Point in Disarmament.—Probably never before in the history of man has Disarmament figured as such a vitally urgent national and international measure. Discussions and official utterances reveal a very disquieting tendency.

When compared with the methods, armament and materials of the war in 1914, those of 1918 reveal basic changes which a hundred years of former peace could not have brought about. These developments are not merely of fact, but they represent the opening of new fields, visions of possibilities previously undreamed of by the practical soldier. By the concentrated application of electricity, chemistry, and other sciences to war two dominating factors have emerged, whose importance to war, and danger for world peace, can only gain momentum with time. The scientific or technical initiative, the invention of a deadly new chemical, wireless-directed aeroplane, or other war appliance and their incidence on war through large scale production in the convertible industries of peace constitute a challenge which, if unanswered by practical schemes for world disarmament, will render the latter worse than useless, by aggravating the danger of sudden decisive attack in an otherwise disarmed world.

There is a tendency to ignore this aspect of disarmament. We appear to be thinking in terms of a world still organised for war on 1914 lines. The disbanding of the German army and semi-military organisations, and the reduction of her artillery and small arms seem to occupy all our attention. Such, it might be urged, is the immediate need; we can leave the future to find answers to the other problems. This answer is dangerous, for it ignores the disarmament aspect of what is perhaps the most important development in the modern offensive campaign. We refer to poison gas or chemical warfare. This, the crux of all disarmament, is dealt with at some length in the chapters which follow.

A curiously illogical attitude of mind has arisen in certain quarters. There is a tendency among strong adherents to the ideal of world peace to regard themselves as its sole possessors. Every thinking civilian and soldier must adhere to such an ideal; the only point at issue is the method of approaching it. The mere fact that a League of Nations is called into being to attain world peace implies recognition of the fact that a definite mechanism and definite measures are required for the purpose; this is self-evident. There are those who, having established their League of Nations, feel that they can attain chemical peace by merely prohibiting chemical war, in other words, they expect their mechanism to achieve its object without functioning, to attain peace by its mere existence. Just as special measures are required to control disarmament in the older branches of warfare, in the same way special measures, but not the same measures, are required to control the chemical peace. Chemical peace guaranteed by a mere signature is no peace at all.

In a recent Press utterance we find an appeal to prohibit chemical warfare and to "trust the general sentiment of the civilised world to say that the lesson has been learnt in that sense." "There is the League of Nations to furnish that sentiment with a mouthpiece and a sanction." We agree, but to stop there is dangerous, the most important thing which it must furnish is a mechanism of control, a check, or guarantee. This question is one of the most important which confronts us for world peace. It merits the most careful consideration.

Even responsible and relevant officials who admit that their League must do more than issue edicts, that their mechanism must function, are ignoring the specific technical aspect of the war methods whose use we wish to limit. This matter will receive later attention.

The following pages, therefore, are an attempt to represent the salient points in the development of chemical warfare, its causes, results, and future. Such an attempt cannot limit itself to merely British developments, and this is not a final detailed memoir of British chemical warfare. Further, in considering the future, we examine another aspect of chemical warfare. Facts lead us to believe that it was purely the most open and obvious activity in a whole campaign of chemical aggression which had effective unity of conception and direction long before the war started.

Need for a Balanced View of Chemical Warfare.—The facts of chemical warfare have probably been less ventilated than those of any other important war development. Yet no subject has aroused more general and intense feeling. Tanks, aircraft, the different campaigns, enemy memoirs, and a variety of war subjects, have received a considerable measure of publicity, some more than full measure. Grave questions are pending in which the chemical aspect of national defence is a prominent factor. However willing the individual concerned, he cannot make a sound judgment on the brief technical or popular garbled versions which have appeared. One searches in vain for balanced and detailed statements on the question. This may be due in no way to lack of intention, but to lack of opportunity. Therefore, no excuse is needed for this contribution, but rather an apology for the obscurity which has so far surrounded the