INTRODUCTION. 23 



Matson, G. C., & Berry, E. W. 



The Pliocene Citronelle formation of the Gulf coastal 

 plain and its flora. U. S. Geol. Surv. Prof. Paper 98:167- 

 208, figs. 15-17, plates 32-44. Sept., 1916. 



Smith, Eugene A. 



Concerning oil and gas in Alabama. Geol. Surv. Ala., 

 Circular 3. 18 pp., 8 text-figures, and 1 double-page insert- 

 ed map. 1917. 



Contains maps of the Hatchetigbee and Jackson anti- 

 clines and adjacent territory, on a larger scale than geologi- 

 cal maps of the same area previously published. 



The U. S. Bureau of Soils has published surveys of sev- 

 eral additional Alabama counties since 1913, so that all the 

 counties in the area under consideration are now mapped 

 except Choctaw, Crenshaw, Geneva, Houston, and Marengo ; 

 and the field work on some of those is already done. 



