same distance to the south-southeast the damage was considerably greater,
i.e., all windows and frames, doors, were damaged and heavy plaster damage
and cracks in the brick work also appeared. The contrast may be
illustrated also by the fact that at the Nagasaki Prefectural office at
10,800 feet the damage was bad enough for the building to be evacuated,
while at the Nagasaki Normal School to which the Prefectural office had
been moved, at the same distance, the damage was comparatively light.

Because of the height of the bursts no evidence was expected of the
shielding of one building by another, at least up to a considerable radius.
It was in fact difficult to find any evidence at any distance of such
shielding. There appeared to have been a little shielding of the building
behind the Administration Building of the Torpedo Works in Nagasaki, but
the benefits were very slight. There was also some evidence that the group
of buildings comprising the Medical School in Nagasaki did afford each
other mutual protection. On the whole, however, shielding of one building
by another was not noticeable.

There was one other peculiar type of shielding, best exhibited by the
workers' houses to the north of the torpedo plant in Nagasaki. These were
6,000 to 7,000 feet north of X. The damage to these houses was not nearly
as bad as those over a thousand feet farther away from the center of
explosion. It seemed as though the great destruction caused in the torpedo
plant had weakened the blast a little, and the full power was not restored
for another 1,000 feet or more.



FLASH BURN