(40) deposit of ash from the 1812 erup. (3) tion capped with a bed five to eight feet thick of debris from the 1902-1903 outburst. The washing away of this small plateau exposed the ruins of the Wallibou sugar mill which and buried was destroyed by the eruption of 1812. Material increase of the delta plain has also been effected at the expense of the sea. Accurate surveys as to ing which would establish the amount of gain are lacking, but appearances indicate that 100 yards would be a low estimate to put on the gain at the point. [Dll. 22, 67A; 82 A; 66B] The thickness of the new material in the delta plain can only be guess- ed, but judging from position of the ruins of the old Wallibou estate mill as compared with the elevation of the