_Light Artillery_ H.E. Shell Shrapnel Pack Guns (2.75 in.) 5,800 5,500 Pack Howitzers (3.7 in.) 5,900 Horse Artillery Guns (13 pr.) 8,500 6,400 Field Guns (18 pr.) 9,500 6,500 Field Howitzers (4.5 in.) 7,000 _Medium Artillery_ Medium Guns (60 pr.) 15,500 15,300 Medium Howitzers (6 in.) 10,000 _Heavy Artillery_ Heavy Guns (6 in.) 19/20,000 19/20,000 Heavy Howitzers (8 in.) 12,300 " " (9.2 in) 13,000 _Super-Heavy Artillery_ Super-Heavy Guns (9.2 in.) 24,500 24,500 " " (12 in.) 28,200 26,100 " " (14 in.) 35,600 -- Super-Heavy Howitzers (12 in.) 14,300 " " (18 in) 23,000 The maximum range of _Medium Mortars_ is 1,500 yards; of _Light Mortars_ 700 yards. {174} CAREY'S FORCE.--During the _Second Battle of the Somme_ "a mixed force, including details, stragglers, schools personnel, tunnelling companies, army troops companies, field survey companies, and Canadian and American Engineers, had been got together and organised by Major-Gen. P. G. Grant, the Chief Engineer to the V. Army. On March 26 these were posted by General Grant, in accordance with orders given by the V. Army commander, on the line of the old Amiens defences between Mezieres, Marcelcave, and Hamel. Subsequently, as General Grant could ill be spared from his proper duties, he was directed to hand over command of his force to Major-Gen. G. G. S. Carey. Except for General Carey's force there were no reinforcements of any kind behind the divisions, which had been fighting for the most part since the opening of the battle. . . . On March 28 our line from Marcelcave to the Somme was manned by Carey's Force, with the 1st Cavalry Division in close support. . . . On March 29 the greater part of the British front south of the Somme was held by Carey's Force, assisted by the 1st Cavalry Division and such troops of the divisions originally engaged as it had not yet been found possible to withdraw. In rear of these troops, a few of the divisions of the V. Army were given a brief opportunity to reassemble" (Sir D. Haig's Dispatches). TANKS