Some months after this ammunition first came to be used in the field it began to give serious trouble. Something was wrong. The shell took to bursting in the bore of the gun and to bulging, or wholly destroying, the piece, although these disasters fortunately did not generally involve loss of life. Between August and October 1915, no less than sixty-four of our 18-pounders were thus rendered unserviceable--very nearly double the number lost during the retreat from Mons, and considerably more than the complement of one of our divisions. We could not comfortably afford this drain upon our supply of field-guns at a time when New Army divisions were still in some cases gun-less, and when the Territorial division were still armed with the virtually obsolete 15-pounder. Accidents of this character, moreover, have a bad effect upon the personnel of batteries, for the soldier does not like his weapon, be it a rifle, or a hand-grenade, or a sabre that crumples up, to play tricks on him. The difficulty was not got over until elaborate experiments, immediately set on foot by the War Office (which still dealt with design and investigation, although actual manufacture was by this time in the hands of the Ministry of Munitions), had been carried out. But before the end of the year it had been established that the failures were due to faults in manufacture, and from that time forward these _contretemps_ became extremely rare in the case of the 18-pounder. The question caused acute anxiety at G.H.Q. and in the War Office for some weeks; the French had had a very similar experience, but on an even worse scale. The difficulty arose just after the Ministry of Munitions became responsible for manufacture, and I do not suggest that the destruction of the guns was the fault of that department, for the ammunition used in the field during that period and for many months later was ammunition ordered by the Master-General of the Ordnance. But similar trouble arose later in the case of the field howitzer; there were no less than 25 of these damaged between April and June 1916, nearly a year after the Munitions Ministry had been set up.