As previously stated it was decided early that the Chemical Warfare Service should have a complete supply service including purchase, manufacture, storage and issue, and accordingly separate supply depots were picked out for the Gas Service early in the fall by Col. Crawford. Where practicable these were located in the same area as all other depots though in one instance the French forced the Gas Service to locate its gas shell and bomb depot some fifteen miles from the general depots through an unreasonable fear of the gas. =Manufacture of Gases.= Due to the time required and the cost of manufacturing gases, an early decision became imperative as to what gases should be used by the Americans, and into what shells and bombs they should be filled. As there was no one else working on the subject the sole responsibility fell upon the Chief of the Gas Service. The work was further complicated by the fact that the British and French did not agree upon what gases should be used. The British condemned viciously Vincennite (hydrocyanic acid gas with some added ingredients) of the French, while the French stated that chloropicrin, used by the British principally as a lachrymator, was worthless. Fries felt the tremendous responsibility that rested upon him and finally after much thought and before coming to any conclusion, wrote the first draft of a short paper on gas warfare. In that paper he took up the tactical uses to which gases might be put and then studied the best and most available gases to meet those tactical needs. Without stating further details it was decided to recommend the manufacture and use of chlorine, phosgene, chloropicrin, bromoacetone and mustard gas. As the gas service was also charged with handling smoke and incendiary materials, smoke was prescribed in the proportion of 5 per cent of the total chemicals to be furnished. The smoke material decided upon was white phosphorus. The paper on Gas Warfare was then re-drafted and submitted to the French and British and written up in final form prescribing the gases above mentioned on October 26. Following this a cable was drawn and submitted to the General Staff. After many conferences and some delay the cable went forward on November 3. CABLE 268, NOVEMBER 4, 1917 Paragraph 12. For chief of Ordnance. With reference to paragraph 2 my cablegram 181, desire prompt information as to whether recommendation is approved that phosgene, chloropicrin, hydrocyanic acid, and chlorine be purchased in France or England and filling plants established in France for filling shells and bombs with those gases.