640 PRINCIPLES OF STRATIGRAPHY 



59. WILLISTON, SAMUEL W., and CASE, E. C. 1912. The Permo-car- 



boniferous of Northern New Mexico. Journal of Geology, Vol. XX, 

 pp. 3-12. 



60. WILSON, J. HOWARD. 1906. The Glacial History of Nantucket and 



Cape Cod, Chapter IV; Columbia University Press, Geological Series, 

 Vol. I. 



61. WOODWORTH, J. B. Some Typical Eskers of Southern New England. 



Boston Society of Natural History Proceedings, Vol. XXVI, pp. 197-220. 



62. WYNNE, A. B. 1878. The Geology of the Salt Range in Punjab. 



Memoirs Geological Survey of India, Vol. XIV, p. 608. 



