by the red character of the latter. The best Pocono plant horizon is near the middle at the end of the railway cutting opposite the watchman's box. Then follows the regulation Orandel Chunk. The Pittsville type of conglomerates appear at about 900 feet below the Pittsville, and while some of these conglomerates resemble those of the Pittsville still they are very in- cidental. At the top of the Orandel Chunk there is a transitional zone of interbedded red shales and Pittsville conglomerates. The Orandel Chunk is an exaggerated con- tinental development of the Catskills while the Coal Measures are the same as the Poconos, conditions alternating with arid ones. Land conditions causes epicontinental seas and warmer moist climates.