560 C. N. GOULD^ CRYSTALLINE ROCKS OF THE PLAINS 



25. Hugh D. Miser: Llanoria, the Paleozoic land area in Louisiana and east- 

 ern Texas. American Journal of Science (fifth series), volume 2. 

 number 8, August, 1921, pages 61-89. 



2G. Sidney Powers : Reflected buried hills and their importance in petroleum 

 geology. Economic Geologist, volume XYII, number 4, June-July, 

 1922, page 249. 



27. John L. Rich: A probable buried mountain range of Early Permian age 

 east of the present Rocky Mountains, in New Mexico and Colorado. 

 Bulletin of the American Association of Petroleum Geologists, volume 

 5, number 5, 1921, pages 605-608. 



