A party of New Zealand Engineers was established in Quinn's and Pope's from the second day, and their duty was to sap forward with a deep trench through the crest, and then put T ends on the ends of the saps, thus making farther towards the Turk a new firing line which gave a better field of fire. This most dangerous work was much hindered by the enemy dropping grenades in the head of the sap. Men often had bullet holes drilled through their long-handled shovels, but despite the casualties, the work went on. To the right of Quinn's it was necessary to dig a sap through to join up with Courtney's, and after much labour and loss this work was accomplished. To the left of Quinn's was the hotly-contested Dead Man's Ridge, which, after the morning of May 3, rested in the hands of the Turk. This vantage point almost looked into the back of Quinn's, and a work of great magnitude was the construction of a sandbag wall to protect the tracks to Quinn's from the Turkish machine guns on Dead Man's Ridge. It was foreseen that if the enemy commenced mining in earnest, a fair-sized charge might blow the post off the hillside into Monash Gully. So counter-mining was decided on. There were no tunnelling companies then in the Mediterranean Expeditionary Force, and the sapper field companies were too reduced by casualties to do the work. But all through the Colonial armies were miners and tunnellers--these men from Broken Hill, Coolgardie, Waihi, Westport, and other places where coal and gold are won, were formed into companies under experienced officers, and in a large measure the strenuous labours of these improvized units at Courtney's, Quinn's and Pope's saved Anzac to the British. Right through the twenty-four hours the miners sweated at the tunnel face, interested in only one thing: how far the man just relieved had driven in his last shift. There was no talk of limiting the output or of striking in Anzac, for here there was a great community of interest--each one was prepared to labour and, if needs be, to sacrifice himself in the interests of the common weal. [Illustration: [_Lent by Sergt. P. Tite, N.Z.E._ COURTNEY'S POST. One of the best photographs taken of an Anzac trench system. The front line is just over the crest; the reserve trenches are near the lop left hand corner; the white earth spilled down the cliffside is from the mines running out to the front; the zig-zag track up the steep cliff is clearly shown.] Aeroplanes. Our flying men had their headquarters in Mudros Harbour. Daily they flew up and down the Peninsula, but they were sadly overworked. Mostly they were seaplanes belonging to the Navy. This was a sad handicap to our artillery ashore, for guns without aeroplanes spotting for them are almost as ineffective as a blind pugilist. [Illustration: ON THE RIGHT FLANK. Notice the deep communication trenches through the crest to the firing line, and the 25 graves in the little cemetery.]