This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1950 Excerpt: ...10, T. 7 N., R. 27 W. 14. Savanna sandstone, roof of the Charleston coal, west end of strip pit, center west side SWK sec. 32, T. 8 N., R. 28 W. 15. Savanna sandstone, shale near the horizon of the Charleston coal, NEM sec. i', T. 7N..R.28W. 16. Savanna sandstone, roof of the Paris cosl, NE.NEK sec. 10, T. 7 N., R. 26 W. 17. Savanna sandstone, shale 300 feet bclow the horizon of the Paris coal, in ditcb beside road NEJSWK sec. 32, T. 7 N., R. 28 W. presence of Mariopteris sp. (cf. M. sphenopteroides) in collections 11 and 13 suggest that they are from strats as old as the upper part of the McAlester shale of Oklshoma. The fact that both of these collections come from the same horizon as collections 12 and 11, which Read believes to be definitely lower Savanna, indicate that the suggested affinity to the upper part of the McAlester shale is not a sufficient basis for correlation. Collections 16 and 17 come from the upper part of the Savanna sandstone. Collection 17 is not diagnostic, and according to Read collection 16 seems to be from a horizon near that of the Cavanal coal in the Oklahoma coal field. On the basis of field mapping, however, the Paris coal, from which collection 16 wss obtained, appears to be considerably higher in the Savanna sandstone than the horizon of the Cavsnsl coal. The plant fossils in collections 11 to 17, inclusive, indicate that the Savanna sandstone correlates with the strata in the Allegheny formation of Pennsylvania. 1. Atoka formation, 2,500 feet ( ) below the top, on road, 2$ miles west of Barber, Ark., SEKSWK sec 4, T. 5 N., R. 29 W. East of the Fort Smith district. 2. Atoka formation, 500 feet bclow the top, at road junction on Highway U. S. No. 71, center west sid, sec. 13, T. 5 N.. R. 31 W. 3. Atoka formation, shale...