The artillery were in a similar plight; their gun-pits were constantly flooding, and the movement of wheeled transport became impracticable. All gun ammunition had therefore to be brought to the gun emplacements on pack-saddles, eight rounds only being carried on each horse. Journey after journey with the pack animals had therefore to be made by the gunner-drivers, with the German field-guns doing their best to aggravate the conditions. The Division took over this sector within a few hours of leaving another battle front. The men had been given little or no opportunity of resting and recuperating after a severe engagement. The result was that their vitality was low, and that their powers of resistance were not at their best. They in consequence suffered considerably more from the adverse conditions than would have been the case with fresher troops. Every method of constructing trenches was tried, and pumps were employed to keep them dry. The results were, however, always the same. No sooner was a trench dug to a depth of three feet than water began to rise in it and the sides fell in. Trenches had therefore to be given up, and overland tracks took their place. For this purpose duck-boards or wattle tracks were laid, the routes being marked out with tracing-tape or posts and wire until such time as the track was completed. As regards protection for the troops against the weather, it was evident that if men were to be left lying for many hours exposed to the weather in shell-holes the wastage from sickness would be appalling. A considerable effort was therefore made to provide the battalions both in the line and in brigade reserve with weather-proof accommodation. For the troops in the line the Divisional engineers designed a highly satisfactory form of shelter, composed of corrugated iron elephant shelters sunk below the level of the parapet of the trench or shell-hole. The material for each shelter could be carried up to the line by ten men, and could be completed in a day and night's work. When completed it accommodated a section post. Large elephant shelters were made for reserve battalions in the sides of sunken roads, while all troops that could be spared were moved back to the camps in the back areas. Thus, after three weeks, conditions had been materially improved. During this period, however, there was a snap of sharp frost. For a while this dried up the mud and much improved the situation; but, as is always the case, the thaw which followed seemed to render the mud, if possible, more all-pervading than had been the case before the frost came.