The S. American Indians have much greater knowledge of the stars, and in consequence frequently connect stellar phenomena, especially those of the Pleiades, with phases of Nature. In north-west Brazil the Indians determine the time of planting from the position of certain constellations, in particular the Pleiades. If these have disappeared below the horizon, the regular heavy rains will begin. The Siusi gave an accurate account of the progress of the constellations, by which they calculate the seasons, and in explanation drew three diagrams in the sand. No. 1 had 3 constellations:--‘a Second Crab’, which obviously consists of the three bright stars west of Leo, ‘the Crab’, composed of the principal stars of Leo, and ‘the Youths’, i. e. the Pleiades. When these set, continuous rain falls, the river begins to rise, beginning of the rainy season, planting of manioc. No. 2 had 2 constellations:--‘the Fishing-basket’, in Orion, and _kakudzuta_, the northern part of Eridanus, in which other tribes see a dancing-implement. When these set, much rain falls, the water in the river is at its highest. No. 3 was ‘the Great Serpent’, i. e. Scorpio. When this sets there is little or no rain, the water is at its lowest[563]. The natives of Brazil are acquainted with the course of the constellations, with their height and the period and time of their appearance in and disappearance from the sky, and according to them they divide up their seasons. In the valley of the Amazon it is said that during the first few days of the appearance of the Pleiades, while they are still low, birds, and especially fowls, roost on low branches or beams, and that the higher the constellation rises the higher the birds roost also. These stars bring cold and rain: when they disappear the snakes lose their poison. The canes used for arrows must be cut before their appearance, or else the arrows will be worm-eaten. The Pleiades disappear, and appear again in June. Their appearance coincides with the renewal of the vegetation and of animal life. Hence the legend says that everything that has appeared before the constellation will be renewed, i. e. its appearance marks the beginning of spring[564]. The Bakairi reckoned by natural phases, but were also well acquainted with astronomical signs, and spoke of certain constellations which reappeared at the beginning of the dry season: they referred to stars in the vicinity of Orion, ‘the Manioc-pole’[565]. The Tamanaco of the Orinoco called the Pleiades ‘the Mat’. They recognised the approach of winter from the signs of Nature[566], but also from the fact that the Pleiades at sunset were not too far distant from the western horizon: the evening setting falls at the beginning of May[567]. The Lengua Indians of Paraguay connect the beginning of spring with the rising of the Pleiades, and at this time celebrate feasts which are generally of a markedly immoral nature[568]. The Guarani of