 A pause of five hours was considered necessary to defeat the German Eingreif divisions , before resuming the advance on the Oosttaverne ( Sehnen ) line . The pause was extended by two hours to 3 : 10 p.m. , after Plumer received reports on the state of the ground . More artillery joined the masked batteries close to the front line and others moved as far into no @-@ man 's @-@ land as the terrain allowed . On the <unk> of the ridge , 146 machine @-@ guns were prepared , to fire an overhead barrage and each division placed sixteen more guns in the observation line on the eastern slope . The 24 tanks in reserve began to advance at 10 : 30 a.m. to join II Anzac Corps and IX Corps on the flanks . Surviving tanks of the morning attack in X Corps , were to join in from Damm and Denys woods . 
