The chief changes in the volcan[19] as compared with 1908 and 1903 consist of the rise of the waters of the crater lake, the removal of loose earth and lapilli from parts of the moun- tain slopes and from the valleys of the Vallibon, Rabaska and other radial rivers, the advance of vegetation over the area devastated by the erup- tion, the restoration of cultivation on several of the old plantations. The surface of the lake determined by theodolite observation to be 779 feet below the point on the rim where the Leeward trail arrives, or 2121 feet above the sea, taking the elevation of the rim at 2900 feet above the sea as the average of aneroid readings taken on three traverses of the the trail_ on different days. The highest point of the rim, which is on the northern side of the crater rises 1386 feet above the present surface of the lake (cf. elevations on Admiralty chart). - Or-