21st Divisional Artillery Instruction 22 June 1916
SECRET
15/CA 10/73.
INSTRUCTIONS FOR CO-OPERATION BETWEEN DIVISIONAL ARTILLERIES AND KITE BALLOONS
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The following arrangements have been made for 18-Pdr Batteries to co-operate with the kite balloon on the day of the assault; one forward Battery in each Division will be in telephonic communication with the kite balloon and will answer any call from it after 3 hours after Zero; up to this time the batteries all have fixed tasks.
J.M.R. Harrison Major
for Brigadier General., R.A., XV Corps.
22nd June 1916
21st DIVISIONAL ARTILLERY for Information
A 97 has already been detailed.