lines, which would be promptly relayed from a Rocket Relay Station, so that all batteries could see it. Rocket signals often changed. A six star red rocket was the usual one. C. P. O.'s and concentrations were fired only on telephonic orders from the Battalion P. C.

                On the night of May 10th we were relieved by B Battery. May 10, incidentally, was our busiest firing day of the war up to that time; 1,173 rounds in all. In the very early morning we helped repulse a projector gas attack against the 103rd Infantry, while later on we engaged in a Coup de Main. This latter was quite an affair. Many batteries had moved in all around us to take part in it. Just below us a number of big six inch guns had been towed in by tractors for the "show." Our firing diary for May 10 is typical of a hard day's shoot.

1.43 Apremont Barrage (the Boche had launched a projector attack upon the 103rd Infantry.)

1.53 Knight Barrage

4.45 Coup de Main, Breslau Trench

5.14 Concentration 354 (on Boche support lines)

200 gas shell

5.41 Apremont Barrage

5.51 Breslau Trench

6.50 Boyau Seelow, Harrassing Fire

12.35 Boyau Seelow

17.05 Boyau Seelow

19.15 Boyau Seelow

20.33 Normal Knight Barrage

20.35 C. P. O. General

CONTENTS
INDEX