the very steep sides of the volcanoes. In places between the volcanoes one sees low hills of Oolaceous shining, that the volcanoes burst through a very rugged topography. In these volcanic hills are situated the cobalt mines. From a distance the volcanic Out look whitish so that one thinks of Oolaceous rocks, between just picture the farm is seen to be a dark Here. Chamtery is surrounded by three volcanoes and is a very active mining center. The last volcanoes are in the region of Salome Btells and of Lampazos back of the station one sees the first flat-typed hills. It stands here about 200 feet above the level of travel and is evidently comparable to the upper level of the Tertiary seen on the Tampico trip. Another one more dissected and an outlier is seen a few miles further north and then no more. The railroad proceeds over the undulating plain of the Tertiary. In several cuts one sees the their bedded rocks, also in the lower part of the