ring west-north-west, one quarter west.
Quite a lively sea running on the surface, also strong current.
At 10.45 A. M. shut down engine; temperature, eighty-eight
degrees Fahrenheit.

After engine was shut down, we could hear the wind blowing past
our pipes extending above the surface; we could also tell by the
sound when any steamers were in the vicinity. We first allowed
the boat to settle gradually to the bottom, with the tide running
ebb; after a time the tide changed, and she would work slightly
sideways; we admitted about four hundred pounds of water
additional, but she still would move occasionally, so that a
pendulum nine inches long would sway one eighth of an inch
(thwartship). At 12 o'clock (noon) temperature was eighty-seven
degrees Fahrenheit; at 2.45 P. M. the temperature was still
eighty-seven degrees Fahrenheit. There were no signs of carbonic
acid gas at 2.45, although the engine had been closed down for
three hours and no fresh air had been admitted during the time.
Could hear the whistle of boats on the surface, and also their
propellers when running close, to the boat. At 3.30 the
temperature had dropped to eighty-five degrees. At 3.45 found a
little sign of carbonic acid gas, very slight, however, as a
candle would burn fairly bright in the pits. Thought we could
detect a smell of gasoline by comparing the fresh air which came
down the pipe (when hand blower was turned). Storage lamps were
burning during the five hours of submergence, while engine was
not running.

At 3.50 engine was again started, and went off nicely. Went into
diving compartment and opened door; came out through air-lock,
and left pressure there; found the wheels had buried about ten
inches or one foot, as the bottom had several inches of mud. We
had 500 pounds of air in the tanks, and it ran the pressure down
to 250 pounds to open the door in about thirty feet.

The temperature fell in the diving compartment to eighty-two
degrees after the compressed air was let in.

Cooked clam fritters and coffee for supper. The spirits of the
crew appeared to improve the longer we remained below; the time
was spent in catching clams, singing, trying to waltz, playing
cards, and writing letters to wives and sweethearts.

Our only visitors during the da