into " Rees's Lake," through a deep and broad channel, called Spring
Garden Creek. This channel is said to be in some places fully sixty feet
deep, but it becomes more shallow as you advance towards the entrance
of the lake, at which you are surprised to find yourself on a mud flat co-
vered only by about fifteen inches of water, under which the depositions
from the spring lie to a depth of four or five feet in the form of the softest
mud, while under this again is a bed of fine white sand. When this mud
is stirred up by the oars of your boat or otherwise, it appears of a dark
green colour, and smells strongly of sulphur. At all times it sends up
numerous bubbles of air, which probably consist of sulphuretted hydro-
gen gas.
The mouth of this curious spring is calculated to be two and a half feet square ; and the velocity of its water, during the rainy season, is three feet per second. This would render the discharge per hour about 499,500 gallons. Colonel Rees showed us the remains of another spring of the same kind, which had dried up from some natural cause.
My companion the Engineer having occupation for another day, I requested Colonel Rees to accompany me in his boat towards the River St John, which I was desirous of seeing, as well as the curious country in its neighbourhood. He readily agreed, and, after an early breakfast next morning, we set out, accompanied by two servants to manage the boat. As we crossed Rees's Lake, I observed that its north-eastern shores were bounded by a deep swamp, covered by a rich growth of tall cypres- ses, while the opposite side presented large marshes and islands ornament- ed by pines, live-oaks, and orange trees. With the exception of a very narrow channel, the creek was covered with nympheae, and in its waters swam numerous alligators, while Ibises, Gallinules, Anhingas, Coots, and Cormorants, wei'e seen pursuing their avocations on its surface or along its margins. Over our heads the Fish Hawks were sailing, and on the broken trees around we saw many of their nests.
We followed Spring Garden Creek for about two miles and a half, and passed a mud bar, before we entered "Dexter's Lake." The bar was stuck full of unios in such profusion, that each time the Negroes thrust their hands into the mud they took up several. According to their report, these shellfish are quite unfit for food. In this lake the water had changed its hue, and assumed a dark chestnut colour, although it was still transparent. The depth was very uniformly five feet, and the extent of the lake was about eight miles by three. Having crossed it, we followed
