The 18th Division battalions were dispersed around the salient, German bombardments on La Briqueterie, Tr�nes Wood, Maltz Horn Farm and Maricourt had cut telephone communication and there was no time to arrange visual signalling or reconnaissance.
22.
Visual signalling was used as a substitute for line communications but some short-range ( ) wireless transmitters were introduced; weighing, needing four men to carry and considerable time to set up, they proved of limited value.
23.
An armada of ships and craft had been assembled but few had wireless and the fog ruined visual signalling; only at Veules-les-Roses were many soldiers rescued, under fire from German artillery, which damaged the destroyers, and " Ambuscade"
24.
W / C Russell explained the operation of the school in an interview with the Toronto Daily Star . " During this period the men will receive lectures in mathematics, radio theory, hygiene, first aid, law and administration, armament, anti-gas work, signalling code and procedure, visual signalling with lamps and flags.
25.
Communication with the rear broke down again, as German artillery-fire cut telephone wires and visual signalling was obstructed by the fog, until about Pigeons and runners carried a few messages and at the divisional commander Major-General Shea, ordered a line from Maltz Horn Farm to the west side of Guillemont to be consolidated and held at all costs.
26.
The attack was " devastated " by German artillery and machine-gun fire, contact with the front was lost, when telephone lines were cut and fog made visual signalling impossible; most of the French infantry were forced back to their start line, with Operations south of the Somme were transferred to the Tenth Army ( General Michler ), artillery reinforcements on both sides of the Somme, led to the Sixth Army capturing the Hem plateau on the north bank, from by stages, before a bigger attack on 12 August, captured the German second line, from the Somme to Maurepas.
