Communications: MS of messenger delivering folded paper to military officer. LAS of flagman signalling on roof of building. Shots of signalmen using upturned bicycle to spool up wire. Shot of signalmen riding lorry-drawn cart, laying wire along country road. MS of two Canadian soldiers laying wire in field, officer walks up and talk to them. CS of wireless operator receiving message. Shots of signalmen in foxhole using telegraph key and other signalling devices. CS of wireless operator wearing earphones lying in culvert shelter (same as NFB1910-P-107, NFB1910-FG-173). MS of man in trench speaking on field telephone. Three MSs of truck-mounted mobile dovecote. CU of special order by Sir Arthur Currie dated August 16th 1918 congratulating troops for "magnificient success". Shot of Canadian soldiers lined up in street as non-commissioned officer reads letter. CU of congratulatory letter from commander in chief, Douglas Haig, to all ranks of British army in France and Flanders.