John Breed, Diary and Training diary, item 151
- April 3, 2017 03:40:17 Cheryl Ellsworth
Suppose a target at "T" with a ridge "A" of
the same height in front of it. Then it may be difficult to
determine whether "T" is on the ridge "A" or no, and whether
the burst at "A" is on the same ridge as the target.
The first point may be determined by looking at "T" from
different points of view, for instance if a point or ridge "A"
can be located in line with "T", then on shifting 100 yards to
the right it will disappear to the left of "T". Similarly as
regards the shell bursts, it is only when in line with "T"
that it becomes puzzling, and an observer sent out
say 200 yards to the opposite flank of the battery should
have no difficulty in locating it.
The difficulty is increased by the hollows in front of
and behind the target
Diagram of hills, labeled A, B, T, C, showing shells hitting different areas
A shell dropped into the deep hollow at C, will either disappear
altogether, or the smoke, when it does appear will be at