near the river, with the forest around so thick with brush and under wood that the mules could not penetrate it, and with no opening for the passage of the road through it. The rancho was merely pitched roof covered with palm-leaves, and supported by four trunks of trees. All around were heaps of snail-shells, and the ground of the rancho was several inches deep with ashes, the remains of fires for cooking them. We had hardly congratulated ourselves upon our arrival at such a beautiful spot, before we suffered such an onslaught of mosquitos as we had not before experienced in the country. We made a fire, and, with appetites sharpened by a hard day's work, sat down on the grass to dispose of a San Pedro fowl; but we were obliged to get up, and, while one hand was occupied with eatables, use the other to brush off the venomous insects. We soon saw that we had bad prospects for the night, lighted fires all around the rancho, and smoked inordinately. We were in no hurry to lie down, and until a late hour, consoling ourselves with the reflection that but for the mosquitos, our satisfaction would be beyond all bounds. The dark border of the clearing was lighted up by fireflies of extraordinary light and brilliancy, darting among the trees, not flashing and disappearing, but carrying a steady light; and, except that their course was serpentine, seeming like shooting stars. In different places there were some that remained stationary, emitting a pale but beautiful light, all seemed like rival belles holding levees. The fiery orbs darted from one to the other; and when one, more daring than the rest, approached too near, the coquette withdrew her light, and the flutterer went off. One, however, carried all before her, and at one time we counted seven hovering around her.
At length we prepared for sleep. Hammocks would leave us exposed on every side to the merciless attacks of the mosquitos, and we spread our mats on the ground. We did not undress. Pawling, with a great deal of trouble, rigged his sheets into a mosquito-net, but it was so hot that he could not breathe under them, and he roamed about or was in the river nearly all night The Indians had occupied themselves in catching snails and cooking them for supper, and then lay down to sleep on the banks of the river; but at midnight, with sharp thunder and lightning, the rain broke in a deluge, and they all came under the shed, and there they lay perfectly naked, mechanically, and without seeming to disturb themselves, slapping their bodies with their hands. The incessant hum and bite of the insects kept us in a constant state of wakefulness and irritation. Our bodies we could protect, but with a covering over the face the heat was insufferable. Before daylight I walked to the river, which was broad and shallow,
