BIBLIOGRAPHY XIX 775 



27. ROSENBUSCn, II. 1898. Eletncnle der Gesteinslchrc. Stuttgart. 



28. SKEATS, E. W. 1903. The chemical composition of limestones from 



upraised coral islands, with notes on their microscopical structure. Bul- 

 letin of the Museum of Comparative Zoology, Vol. XLII, pp. 53-126. 



29. SMYTH, C. H., JR. 1892. On the Clinton Iron Ore. American Journal 



of Sciences, 3rd series, Vol XLIII, pp. 487-496. 



30. STEIDTMANN, EDWARD. 191 1. The Evolution of Limestones and 



Dolomite. Journal of Geology, Vol. XIX, pp. 323-345; 392-428. 



31. SUESS, EDUARD. 1910. The Face of the Earth, Vol. II (English 



translation by SoUas and Sollas). 



32. VAN HISE, CHARLES R. 1884. Enlargement of Feldspar Fragments 



in Certain Keweenawan Sandstones. Bulletin of the United States 

 Geological Survey, No. 8, pt. I, pp. 44-47. 



33. VAN HISE, C. R. 1896. Principles of North American Pre-Cambrian 



Geology. i6th Annual Report of the United States Geological Survey, 

 pt. I. 



34. VAN HISE, C. R. 1904. A Treatise on Metamorphism. United States 



Geological Survey, Monograph XL VI I. 



35. WALTHER, JOHANNES. 1894. Einleitung in die Geologic, Litho- 



genesis der Gegenwart. 



36. WIELAND, G. R. 1897. Eopateozoic Hot Springs and the Origin of 



the Pennsylvania Siliceous Oolites. American Journal of Science, 4th 

 series. Vol. IV, pp. 262 et seq. 



37. ZIEGLER, VICTOR. 1912. TheSiliciousOolitesof Central Pennsylvania. 



American Journal of Science, 4th series, Vol. XXXIV, pp. 1 13-127. 



