Travels on the Amazon. Alfred Russel Wallace

and had the satisfaction to see the extraordinary juice come out. Catching a little in a box I had with me, I next day found it genuine india-rubber, of a yellowish colour, but possessing all its peculiar properties.

      It being some saint's day, in the evening a fire was lit in the road in front of our house, and going out we found Isidora and Vincente keeping it up. Several others were visible in the street, and there appeared to be a line of them reaching to the city. They seemed to be made quite as a matter of business, being a mark of respect to certain of the more illustrious saints, and, with rockets and processions, form the greater part of the religion here. The glorious southern constellations, with their crowded nebulæ, were shining brilliantly in the heavens as the fire expired, and we turned into our hammocks well satisfied with all that we had seen during the day.

      July 4th.—The vegetation now improved in appearance as the dry season advanced. Plants were successively budding and bursting their blossoms, and bright green leaves displaced the half-withered ones of the past season. The climbers were particularly remarkable, as much for the beauty of their foliage as for their flowers. Often two or three climb over one tree or shrub, mingling in the most perplexing though elegant confusion, so that it is a matter of much difficulty to decide to which plant the different blossoms belong, and should they be high up it is impossible. A delicate white and a fine yellow convolvulus were now plentiful; the purple and yellow trumpet-flowers were still among the most showy; and some noble thick-leaved climbers mounted to the tops of trees, and sent aloft bright spikes of scarlet flowers. Among the plants not in flower, the twin-leaved Bauhinias of various forms were most frequently noticed. The species are very numerous: some are shrubs, others delicate climbers, and one is the most extraordinary among the extraordinary climbers of the forest, its broad flattened woody stems being twisted in and out in a most singular manner, mounting to the summits of the very loftiest forest-trees, and hanging from their branches in gigantic festoons, many hundred feet in length. A handsome pink and white Clusia was now abundant, with large shining leaves, and flowers having a powerful and very fragrant odour. It grows not only as a good-sized tree out of the ground, but is also parasitical on almost every other forest-tree. Its large round whitish fruits are called "cebola braba" (wild onion), by the natives, and are much eaten by birds, which thus probably convey the seeds into the forks of lofty trees, where it seems most readily to take root in any little decaying vegetable matter, dung of birds, etc., that may be there; and when it arrives at such a size as to require more nourishment than it can there obtain, it sends down long shoots to the ground, which take root, and grow into a new stem. At Nazaré there is a tree by the road-side, out of the fork of which grows a large Mucujá palm, and on the palm are three or four young Clusia trees, which no doubt have, or will have, Orchideæ and ferns again growing upon them. A few forest-trees were also in blossom; and it was truly a magnificent sight to behold a great tree covered with one mass of flowers, and to hear the deep distant hum of millions of insects gathered together to enjoy the honeyed feast. But all is out of reach of the curious and admiring naturalist. It is only over the outside of the great dome of verdure exposed to the vertical rays of the sun that flowers are produced, and on many of these trees there is not a single blossom to be found at a less height than a hundred feet. The whole glory of these forests could only be seen by sailing gently in a balloon over the undulating flowery surface above: such a treat is perhaps reserved for the traveller of a future age.

      A jararáca, said to be one of the most deadly serpents in Brazil, was killed by a Negro in our garden. It was small, and not brightly coloured. A fine coral snake was also brought in; it was about a yard long, and beautifully marked with black, red, and yellow bands. Having, perhaps, had some experience of the lavish manner in which foreigners pay for such things, the man had the coolness to ask two milreis, or 4s. 6d. for it, so he had to throw it away, and got nothing. A penny or twopence is enough to give for such things, which are of no value to the natives; and though they will not search much after them for such a price, yet they will bring you all that come in their way when they know you will purchase them. Snakes were unpleasantly abundant at this time. I nearly trod on one about ten feet long, which rather startled me, and it, too, to judge by the rapid manner in which it glided away. I caught also a small Amphisbena under the coffee-trees in our garden. Though it is known to have no poison-fangs, the Negroes declared it was very dangerous, and that its bite could not be cured. It is commonly known as the two-headed snake, from the tail being blunt and the head scarcely visible; and they believe that if it is cut in two, and the two parts thrown some yards apart, they will come together again, and join into an entire animal.

      Among the curious things we meet with in the woods are large heaps of earth and sand, sometimes by the roadside, and sometimes extending quite across the path, making the pedestrian ascend and descend (a pleasing variety in this flat country), and looking just as if some "Pará and Peru direct Railway Company" had commenced operations. These mounds are often thirty or forty feet long, by ten or fifteen wide, and about three or four feet high; but instead of being the work of a lot of railway labourers, we find it is all due to the industry of a native insect, the much-dreaded Saüba ant. This insect is of a light-red colour, about the size of our largest English species, the wood-ant, but with much more powerful jaws. It does great injury to young trees, and will sometimes strip them of their leaves in a single night. We often see, hurrying across the pathways, rows of small green leaves; these are the Saübas, each with a piece of leaf cut as smoothly as with scissors, and completely hiding the body from sight. The orange-tree is very subject to their attacks, and in our garden the young trees were each planted in the centre of a ring-shaped earthen vessel, which being filled with water completely surrounded the stem, preventing the ants from reaching it. Some places are so infested by them that it is useless planting anything. No means of destroying them are known, their numbers being so immense, as may readily be seen from the great quantities of earth they remove.

      Many different kinds of wasps' and bees' nests are constantly met with; but we were rather shy of meddling with them. They are generally attached to the undersides of leaves, especially of the young Tucumá palm, which are broad, and offer a good shelter. Some are little flat domes, with a single small opening; others have the cells all exposed. Some have only two or three cells, others a great number. These are all of a delicate papery substance; but some have large cylindrical nests, on high trees, of a material like thick cardboard. Then again there are nests in hollow trees, and others among their roots in the earth, while the solitary species make little holes in the paths, and pierce the mud-walls of the houses, till they appear as if riddled with shot. Many of these insects sting very painfully; and some are so fierce, that on their nests being approached, they will fly out and attack the unwary passer-by. The larger kinds of wasps have very long stings, and can so greatly extend their bodies that we were often stung when endeavouring to secure them for our collections.

      I also suffered a little from another of our insect enemies: the celebrated chigoe at length paid us a visit. I found a tender pimple on the side of my foot, which Isidora pronounced to be a "bicho do pé" or chigoe; so preferring to extract it myself, I set to work with a needle, but not being used to the operation, could not get it out entire. I then rubbed a little snuff in the wound, and afterwards felt no more of it. The insect is a minute flea, which burrows into the skin of the toes, where it grows into a large bag of eggs as big as a pea, the insect being just distinguishable as a black speck on one side of it. When it first enters it causes a slight irritation, and if found may then be easily extracted; but when it grows large it is very painful, and if neglected may produce a serious wound. With care and attention, however, this dreaded insect is not so annoying as the mosquito or our own domestic flea.

      Having made arrangements for another and a longer visit to Magoary, we packed up our hammocks, nets, and boxes, and went on board a canoe which trades regularly to the mills, bringing the rice and timber, and taking whatever is required there. We left Pará about nine at night, when the tide served, and at five the next morning found the vessel lying at anchor, waiting for the flood. We were to proceed on to the mills in a montaria, or small Indian canoe, and as we were five with the Negroes who were to paddle, I felt rather nervous on finding that we sank the little boat to within two inches of the water's edge, and that a slight motion of any one of the party would be enough to swamp us altogether. However, there was no help for it, so off we went, but soon found that with its unusual load our boat leaked so much that we had to keep baling