170 ANNALS NEW YORK ACADEMY OF SCIENCES 



347. Williams, H. S. : On the Fossil Faunas of the Upper Devonian. U. S. 



Geol. Siirv. Bull. 41. 1887. Small oolitic iron-ore seam of Devonian 

 age. 



348. Willis, Bailey : Iron Ore Samples Collected in Georgia. 10th Census 



of the U. S., Vol. XV, pp. 367-382. 1886. 



349. : Idem. In Alabama, pp. 400-401. 



350. : Idem. In Tennessee, pp. 331-365. 



351. : Idem. In Ohio, pp. 235-24.3. ' , 



352. : Mechanics of Appalachian Structure. U. S. Geol. Surv., 13th 



Ann. Kept., pp. 253-258. 1892. 



353. : A Theory of Continental Structure Applied to North America. 



Geol. Soc. of Am. Bull., Vol. XVIII. pp. 389^12. 1907-1908. 



354. Willis, Bailey, and Salisbury, R. D. See Grabau, A. W. (128). 



355. Woodman, J. Edmund: Report on the Iron Ore Deposits of Nova Scotia^ 



Can. Dept. of Mines. Mines Branch, No. 16m. 1909. 



356. : Iron Ores of Nova Scotia. Can. Dept. of Mines, Mines Branch, 



Part i, No. 20. 1909. 



357. : Idem, Part ii. (Not yet published.) 



358. WooTON, P. : Production of Iron and Other Minerals in Alabama. Mng. 



and Eng. World, Vol. XXXVII, p. 489. 1912. 



359. Ziegler, V. : The Siliceous Oolites of Central Pennsylvania. Am. Jour. 



Sci., Vol. XXXIV, pp. 113-127. 1912. 



