To the trials of hard fighting and marching on field rations the wet added a severe test of physical endurance. The troops were in enemy country where they scrupulously avoided every native village, and no wall or roof stood to shelter them from wind or water. The heat of the first two weeks of November changed with a most undesirable suddenness, and though the days continued agreeably warm on the plain into December, the nights became chilly and then desperately cold. The single blanket carried in the pack--most of the infantry on the march had no blanket at all--did not give sufficient warmth to men whose blood had been thinned by long months of work under a pitiless Eastern sun, and lucky was the soldier who secured even broken sleep in the early morning hours of that fighting march across the northern part of the Maritime Plain. The Generals, with one eye on the enemy and the other on the weather, must have been dismayed in the third week of November at the gathering storm clouds which in bursting flooded the plain with rains unusually heavy for this period of the year. The surface is a very light cotton soil several feet deep. When baked by summer sun it has a cracked hard crust giving a firm foothold for man and horse, and yielding only slightly to the wheels of light cars; even laden lorries made easy tracks over the country. The lorries generally kept off the ill-made unrolled Turkish road which had been constructed for winter use and, except for slight deviations to avoid wadis and gullies cut by Nature to carry off surplus water, the supply columns could move in almost as direct a course as the flying men. When the heavens opened all this was altered. The first storm turned the top into a slippery, greasy mass. In an hour or two the rain soaked down into the light earth, and any lorry driver pulling out of the line to avoid a skidding vehicle ahead, had the almost certainty of finding his car and load come to a full stop with the wheels held fast axle deep in the soft soil. An hour's hard digging, the fixing of planks beneath the wheels, and a towing cable from another lorry sometimes got the machine on to the pressed-down track again and enabled it to move ahead for a few miles, but many were the supply vehicles that had to wait for a couple of sunny days to dry a path for them.