screaming to tender chirrupings. Numerous brown and yellow fly-catchers sat on small dead branches, and darted off every now and then after passing insects. A couple of beautiful mot-mots (Eumomota superciliaris) made short flights after the larger insects, or sat on the low branches by the river-bank, jerking their curious tails from side to side. Swallows skimmed past in their circling flights, whilst in the bushes were warbling orange-and-black Sisitotis and many another bird of beautiful feather. One class of birds, and that the most characteristic of tropical America, was decidedly scarce. I did not see a single humming-bird by the river-side. On the savannahs they are much less frequent than in the forest region. Insects were not so numerous as they had been in preceding years. Over sandy spots two speckled species of tiger-beetles ran and flew with great swiftness. I saw one rise from the ground and take an insect on the wing that was flying slowly over. On one myrtle-like bush, with small white flowers, there were dozens of a small Longicorn new to me, which, when flying, looked like black wasps. It was very pleasant to sit in the cool shade, and listen to, and watch, the birds. There was here no fear of dangerous animals, the only annoyance being stinging ants or biting sand-flies, neither of which were at this place very numerous. Snakes also were scarce. I saw but one, a harmless green one, that glided away with wavy folds amongst the brushwood. The natives say that alligators are plentiful in the river, but that they are harmless. I saw one small one, about five feet long, floating with his eyes, nostrils, and the serratures of his back only above water. Every one bathes in the river without fear, which would not be the case if there had been any one seized by them during the last fifty years; for no traditions are more persistent than tales of the attacks of wild beasts. Anxious parents pass on from generation to generation the stories they themselves were told when children.