three o’clock in the afternoon
At noon they passed on the left the mouth of the Yacurupa . This tributary , properly speaking , is a true canal , for it discharges its waters into the Iça , which is itself an affluent of the Amazon . A peculiar phenomenon , for the river displaces itself to feed its own tributaries ! Toward three o'clock in the afternoon the giant raft passed the mouth of the Jandiatuba , which brings its magnificent black waters from the southwest , and discharges them into the main artery by a mouth of four hundred meters in extent , after having watered the territories of the Culino Indians . A number of islands were breasted -- Pimaicaira , Caturia , Chico , Motachina ; some inhabited , others deserted , but all covered with superb vegetation , which forms an unbroken garland of green from one end of the Amazon to the other . ON THE EVENING of the 5th of July , the atmosphere had been oppressive since the morning and threatened approaching storms . Large bats of ruddy color skimmed with their huge wings the current of the Amazon .