One does not see much of the world between one o'clock and four in this climate. These are the hottest hours of the day, and there are few who can resist the temptation of the cool swinging hammock, slung in some shady spot within doors or without. I found a quiet retreat by the lake shore, where, though I had a book in my hand, the wind in the trees overhead, and the water rippling softly around the montarias moored at my side, lulled me into that mood of mind when one may be lazy without remorse or ennui, and one's highest duty seems to be to do nothing. The monotonous notes of a _violon_, a kind of lute or guitar, came to me from a group of trees at a little distance, where our boatmen were resting in the shade, the red fringes of their hammocks giving to the landscape just the bit of color which it needed. Occasionally a rustling flight of paroquets or ciganas overhead startled me for a moment, or a large pirarucu plashed out of the water; but except for these sounds, Nature was silent, and animals as well as men seemed to pause in the heat and seek shelter. Dinner brought us all together again at the close of the afternoon in our airy banqueting-hall. As we were with the President, our picnic was of a much more magnificent character than are our purely scientific excursions, of which we have had many. On such occasions, we are forced to adapt our wants to our means; and the make-shifts to which we are obliged to resort, if they are sometimes inconvenient, are often very amusing. But now, instead of teacups doing duty as tumblers, empty barrels serving as chairs, and the like incongruities, we had a silver soup tureen and a cook and a waiter, and knives and forks enough to go round, and many other luxuries which such wayfarers as ourselves learn to do without. While we were dining, the Indians began to come in from the surrounding forest to pay their respects to the President; for his visit was the cause of great rejoicing, and there was to be a ball in his honor in the evening. They brought an enormous cluster of game as an offering. What a mass of color it was, looking more like an immense bouquet of flowers than like a bunch of birds! It was composed entirely of toucans with their red and yellow beaks, blue eyes, and soft white breasts bordered with crimson, and of parrots, or papagaios, as they call them here, with their gorgeous plumage of green, blue, purple, and red.