For weeks the weather has been so foggy that we began to consider
ourselves as good as retired. But three days ago it began to become
bearable again. We took good advantage of it. We were in our machines
early in the morning and "worked" till 5:30 at night. I made five
flights to-day. First, Wilhelm, as the observer, did some scout work,
and later did some range-finding for the artillery. We had agreed that
we were to fly above the enemy's positions and then the artillery was
to fire. Then it was Wilhelm's duty, as observer, to see where the
shells struck and signal to our artillery, with colored lights, if the
shots fell short, beyond, to right or left, of the mark. This we do
until our gunners find the range. On the 22d, as a result of this, we
destroyed one of the enemy's batteries. The next day we wiped out
three in three and a half hours. This sort of flying is very trying to
observer and pilot alike, as both have to be paying constant attention
to business.
Yesterday Wilhelm was at headquarters, and returned with the Iron
Cross of the First Class. He has covered a total distance of 6,500
kilometers over the enemy's soil, while I have covered 3,400.