74 Bulletin 7 130 



- The Newark System. 



Amer. Geol., vol. iii, pp. 178-182, 1889. 



- Are there Glacial Records in the Newark System ? 



Amer. Jour. Sci., 3d ser. , vol. xli, pp. 499-505, 1891. 

 For Virginia, see p. 500. 



- Correlation Papers. ^The Newark System. 



Bull. U. S. Geol. Surv., No. 85, 344 pp., map, plates, 

 and sedlions, 1892. 



For Virginia, see especially pp. 20, 21, 22, 23, 85-89. 



SafFord, Jas. M., Geology of Tennessee. 

 Nashville, Tenn., 1869. 

 See Part I. — Physical Geography. 



References made in a general way to some of the Virginia geol- 

 ogy near the Tennessee boundary. 



Santos, J. R., Examination of the Produces of Weathering 

 of Allanite. 



Chem. News, vol. xxxviii, p. 95, 1878. 



Geol. Record, 1878, London, 1882, p. 261. 



"Analyses of the two layers of the crust on the allanite of Am- 

 herst Co., Virginia. From these it appears that Ca, Mg, Y, and 

 Di have been entirely removed; La has almost disappeared; Ce has 

 been reduced in quantity; much Si02 has been withdrawn; Fe has 

 been peroxidized; H2O has increased; and Al and G have not 

 been removed. — F. W. R." 



Schneider, B. A., & Bakins, I<. G., Ores of Manganese 

 from Virginia. Analyses. 



Bull. U. S. Geol. Surv., No. 78, p. 127, 1891. 



Schmit^, B. T., The StruAure of the Richmond Coal Basin. 

 Trans. Amer. Inst. Min. Engrs., vol. xxiv, pp. 397-408, 

 figs. 1-13, 1896. 



Seamon, W. H., Examination of a Supposed Metallic Me- 

 teorite Found in Augusta County, Virginia. 

 Chem. News, vol. xlvi, p. 204, 1882. 

 Geol. Record, 1880-84 incl., London, 1889, vol. ii, p. 149. 

 For further reference, see under Lewis, H. C. 



— The Faber Lead and Zinc Mines 



The Virginias, vol. vi, p. 47, 1885. 



Sedgwick, Wm. T., (See under Rogers, Mrs. Wm. B. ). 



