front and finally at Escandon we have risen above the lava lake floor. In several of the craters one sees the lava lying above a leveled floor of paleocenic tufa of Cretaceous material. This is a lava floor 2 many miles from high ground on the left of the train as we go north. At Monopolato, to the left of the track is a temporary lodge, very narrow but a mile or two in length. Showing how are the depressions above regular bedded deposits. This lodge is produced by a dam of about 6 to 8 feet high. We descend from Monopolato in a succession of horse shoe curves. At Francisco we are still on this dam grade one for miles we have come through a vast lava field which is flues in strongly foliated at especially in the beds of streams. I snapped the camera coming over a small canyon. Between Francisco and Bernal it is all down through the old lava fields. The country is very roughed and covered with cinder. Far away to the right are high mountains glistening white in the sun. Probably Cretaceous.