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[[circled]] 422 [[/circled]]
July 25, 1918.
Each group has its operations office and each squadron has [[underline]] its [[/underline]] "intelligence" branch. Group work is divided among the squadrons, and squadron work is divided among the flights. That is how we came to have patrols, [[protections]], or alters at definite hours.
In the office of our intelligence bureau is all manner of information at hand. A spy would have a lovely time in that room. Data, maps, photographs, reports - what a mass of information is necessary to pursue successful modern warfare!
And this half of the operations' shack where I write is the rest room fitted up by the Red Cross. Many markings on the walls have been left by the members of the First Pursuit Group and many have been added by our own forces. For instance, the partition window opening to the