degrees 10' 42" and longitude 112 degrees 21' 05" from Greenwich.
From a discussion of the barometrical observations made during our
stay on the shores of the lake, we have adopted 4,200 feet for its
elevation above the Gulf of Mexico. In the first disappointment
we felt from the dissipation of our dream of the fertile islands,
I called this Disappointment Island.

"Out of the driftwood, we made ourselves pleasant little lodges,
open to the water, and, after having kindled large fires to excite
the wonder of any straggling savage on the lake shores, lay down,
for the first time in a long journey, in perfect security; no
one thinking about his arms. The evening was extremely bright and
pleasant; but the wind rose during the night, and the waves began
to break heavily on the shore, making our island tremble. I had not
expected in our inland journey to hear the roar of an ocean surf;
and the strangeness of our situation, and the excitement we felt
in the associated interests of the place, made this one of the most
interesting nights I remember during our long expedition.

"In the morning, the surf was breaking heavily on the shore, and
we were up early. The lake was dark and agitated, and we hurried
through our scanty breakfast, and embarked -- having first filled
one of the buckets with water from which it was intended to make
salt. The sun had risen by the time we were ready to start; and it
was blowing a strong gale of wind, almost directly off the shore,
and raising a considerable sea, in which our boat strained very
much. It roughened as we got away from the island, and it required
all the efforts of the men to make any head against the wind and
sea; the gale rising with the sun; and there was danger of being
blown into one of the open reaches beyond the island. At the distance