The effort to keep up communications during these days tested every one to the limit. Units were changing location like figures in a kaleidoscope, and nearly the whole of the existing system of lines had passed into the enemy’s hands. However, by the most strenuous efforts, touch was maintained throughout the retreat, and the good work done was recognized by the Corps commander; for in a letter addressed to Colonel Harrison, he conveyed his appreciation of the work carried out by all ranks of the Company during the recent operations. He added that he realized that, owing to the untiring energy and devotion to duty shown by all ranks, a very high standard of communication was maintained, and thanked all for the efforts made and the results achieved. The general commanding the Heavy Artillery also made reference in a special order of the day to the particularly good work done by the H.A. Signal Section, under Lieutenant Collins, in the following words:— “That the Heavy Artillery was able to cover the whole Corps front with its fire during each day, and to withdraw to fresh positions each night, testifies also to the excellence of the staff work—especially in connection with telephonic communication.” On the 11th Corps Headquarters fell back to Wardrecques, between St. Omer and Hazebrouck, leaving an advanced Signal Office at La Motte until the evening of the 12th. During the next few days it became evident that the front was established again—at any rate temporarily—and the work of restoring the normal network of communication at once commenced, at first with great shortage of material, as all forward signal dumps had been captured. Captain Dingwall, whose health had suffered under the continuous strain in France, now left the Company to join L Signal Battalion, and was replaced by Captain Ross, who was relieved of the Heavy Artillery Section by Lieutenant Collins. Lieutenant Hill took up duty at headquarters, and Lieutenant McArthur left the Wireless Section for 51 Air Line. At this time also Lieutenant-General Sir J. P. Ducane was summoned to replace Sir Henry Rawlinson on the Versailles Council, and the XV. Corps was henceforward commanded by Lieutenant-General Sir B. de Lisle. The departure of General Ducane was much regretted by the Company, as he had always taken a close interest in communications, and showed keen appreciation of the work done, as is shown by the following extract from a letter written by him to Colonel Harrison after the termination of hostilities:—