f the river bed was gradual for two-1/48 thirds of a mile from the sea. The old lowest of the lava flows, exposed in 1903-1908 as a ridge in the bed of the river about 450 yards from the strand line, is now the capping of a vertical precipice 25 feet high forming a waterfall in the stream. Its exposed edge is a- bout 15 feet thick and the flow rests upon an old bed of ash. As has been noted in previous descriptions of the Soufrière there were many extravasations of lava (augite andes- ite) in the earlier history of the volcano. In 1907 I described Bull, J.S.A. the U-shaped rock gorges of the Lai- kai and illustrated them. The best example extends from 650 to 725 yards from the sea and is in the