LOBECK, NEW YORK CITY, A PHYSIOGRAPHIC CENTER 41 



■*86. Heilprin, A. 1907. The Catskill mountains. Bull. Am. Geog. Soc, 

 XXXIX, p. 193. 



87. Hice, R. R. 1903. Northward flow of ancient Beaver river. Bull. Geol. 



Soc. Am., XIY, p. 297. 



88. Hubbard, G. D. 1906. Drumlinoids of the Catatonk region. Bull. Am. 



Geog. Soc, XXXVIII, p. 355. 



89. Quereau, E. C. 1898. Jamesville lake, N. Y. Bull. Geol. Soc. Am., IX. 



p. 173. 

 *90. Rich, J. L. 1914. Catskill mountains. Bull. Geol. Soc. Am., XXV, p. 68. 

 *91. Rich, J. L. 1915. Notes on physiography and glacial geology of the 



northern Catskills. Am. Jour. Sci., 4th ser., XXXIX, p. 137. 



92. Shaw, E. W. 1911. High terraces and abandoned valleys in western 



Pennsylvania. Jour. Geol., XIX, p. 140. 



93. Tarr, R. S. 1894. Lake Cayuga a rock basin. Bull. Geol. Soc. Am., V, 



p. 339. 

 *94. Tarr, R. S. 1905. Drainage features of central New York. Bull. Geol. 

 Soc. Am., XVI, p. 229. 



95. Tarr, R. S. 1905. Moraine of Seneca and Cayuga lake valleys. Bull. 



Geol. Soc. Am., XVI, p. 215. 



96. Tarr, R. S. 1905. Gorges and waterfalls of central New York. Bull. 



Am. Geog. Soc, XXXVII, p. 193. 

 *97. Tarr, R. S. 1910. Towns and cities of central New York. Bull. Am. 



Geog. Soc, XLII, p. 738. 

 *9S. Tower, W. S. 1906. Regional and economic geography of Pennsylvania. 



Bull. Geog. Soc. Phila., IV, pp. 9, 113, 193. 271 : V. p. 21. 

 99. Piedmont Folio, U. S. G. S., No. 28. 



100. Monterey Folio, U. S. G. S., No. 61. 



101. Gaines Folio, U. S. G. S., No. 92. 



102. Elkland-Tioga Folio, U. S. G. S., No. 93. 



103. Brownsville-Connellsville Folio, U. S. G. S., No. 94. 



104. Waynesburg Folio, U. S. G. S., No. 121. 



105. Elders Ridge Folio, U. S. G. S., No. 123. 



106. Rural Valley Folio, U. S. G. S., No. 125. 



107. Ebensburg Folio, U. S. G. S., No. 133. 

 10S. Beaver Folio, U. S. G. S., No. 134. 



109. Rogersville Folio, U. S. G. S., No. 146. 



110. Accident-Grantsville Folio, U. S. G. S., No. 160. 



111. Watkins Glen-Catatonk Folio, U. S. G. S., No. 169. 



112. Sewickley Folio, U. S. G. S., No. 176. 



113. Bamesboro-Patton Folio, U. S. G. S., No. 189. 



V. — Newer Appalachians Province 



114. Baldwin, S. P. 1894. Pleistocene of Champlain valley. Am. Geol., XIII. 



p. 170. 

 *115. Brigham, A. P. 1905. The great roads across the Appalachians. Bull. 

 Am. Geog. Soc, XXXVII, p. 321. 

 116. Chamberlin, R. T. 1910. Appalachian folds of Pennsylvania. Jour. 

 Geol., XVIII, p. 228. 



