The Editorial Section received reports from all the other Sections, from which a semi-monthly report was written, and distributed to authorized representatives of the Army and Navy and to our Allies. Reports were also received from abroad and the information thus received was made available to the Research Division. As the number of reports increased the work was collected together into monographs on the various war gases, absorbents, smokes, etc. After the signing of the armistice these were revised and increased in number, so that about fifty were finally turned over to the Director of the Chemical Warfare Service. GAS DEFENSE DIVISION The story of the Gas Defense Division is largely the story of the gas mask. Colonel (then Mr.) Bradley Dewey was in charge of the “first twenty thousand.” Soon after that work was undertaken, he was commissioned Major in the Gas Defense Division of the Sanitary Corps and was placed in charge of the entire manufacturing program. The work of the Division included the development and manufacture as well as the testing and inspection of gas masks, and other defense equipment. The magnitude of the work is seen from the following record of production: 5,692,000 completed gas masks, 3,614,925 of which were produced at the Long Island City Plant, while the remainder were assembled at the Hero Manufacturing Company’s Plant at Philadelphia, 377,881 horse masks, 191,388 dugout blankets, 2,450 protective suits and 1,773 pairs of gloves, 1,246 tons of protective ointment, 45,906 gas warning signals (largely hand horns), 50,549 trench fans and many oxygen inhalators. [Illustration: FIG. 5.—The Defective Gas Mask. Successfully used by the Gas Defense Division to stimulate care in every part of the operation of the manufacture of Gas Masks.] The story of the “first twenty thousand” has already been told on page 43. That these masks were far from satisfactory is no reflection upon the men who made them. Even with the standard design of the British as a pattern, it was impossible to attain all the knowledge concerning gas masks in two months. The experience gained in this struggle enabled the Army to take up the manufacture of gas masks, in July, 1917, with a more complete realization of the seriousness of the task. The masks were not lost, either, for they were sent to the various camps as training masks and served a very useful purpose.