y the
sweat which ran incessantly over his forehead and into his eyes,
and would awake to new torment.

It was almost like a blessed deliverance when the eight hours of
rest were over, and a new watch was called to the central or the
engine-room.

[Illustration: Redrawn from _The Sphere_. Permission of _Scientific
American_.

_A Submarine Discharging a Torpedo._]

But there the real martyrdom began. Clad only in an undershirt
and drawers, the men stood at their posts, a cloth wound about
their foreheads to keep the running sweat from streaming into
their eyes. Their blood hammered and raced in their temples.
Every vein boiled as with fever. It was only by the exertion of
the most tremendous willpower that it was possible to force the
dripping human body to perform its mechanical duty and to remain
upright during the four hours of the watch....

But how long would we be able to endure this?

I no longer kept a log during these days and I find merely this
one note: "Temperature must not rise any higher if the men are to
remain any longer in the engine-room."

But they did endure it. They remained erect like so many heroes,
they did their duty, exhausted, glowing hot, and bathed in sweat,
until the storm centre lay behind us, until the weather cleared,
until the sun broke through the clouds, and the diminishing seas
permitted us once more to open the hatches.[4]

[Footnote 4: (C)]

The _Deutschland_ was now near her goal. Without any trouble she
entered Hampton Roads and was docked at Baltimore. There her cargo
was discharged and her return cargo loaded. This latter operation
involved many difficulties. During her stay a United States
Government Commission made a detailed inspection of the
_Deutschland_ to determine beyond all question her mercantile
character. But at last the day of departure, August 1, had arrived.
Properly escorted she made the trip down the Patapsco River and
Chesapeake Bay. On her way down she made again diving trials which
Captain Koenig describes as follows:

In order to see that everything else was tight and in good order,
I gave the command to set the boat upon the sea bottom at a spot
which, according to the reading upon the chart, had a depth of
some 30 meters.

Once again everything grew silent. The daylight vanished the
well-known