STATE GEOl^OGIC MAP OF 1901 23 



16 Map of Clinton co., showing boundary between 



Cambrian and pre-Cambrian formations, pi. 1, 

 p. 503. 



17 Map of Ellenburg, Clinton co. p. 553. 



New York State Geologist. 16tli Annual Report. 



1899. 

 18 Map of Potsdam-pre-Cambrian boundaries in 

 Clinton, Franklin and St Lawrence counties, 

 p. 4. 

 19 Map of a portion of towns of Potsdam and 

 Pierrepont, St Lawrence co. p. 25. 



New York State Geologist. ISth Annual Report. 



1900. 

 20 Geologic map of Franklin county. 



Dale, T. N. United States Geological Survey. 13tli Annual 

 Report. 1893. pt 2, pi. 97. 



21 Geologic map of the region between the Taconic 



range and the Hudson valley. 



United States Geological Survey. 19th Annual 



Report. 1899. pt 3, pi. 13. 



22 Geologic map of the slate belt of eastern New 



York and western Vermont. 

 Dana, J. D. American Journal of Science. Ser. 3, no. 120. Dec. 

 1880. 20:450, pi. 8. 



23 Map showing limestone areas of Dutchess, West- 



chester and Putnam counties, New York and 

 a part of western Connecticut. 



American Journal of Science. Ser. 3, no. 171. Mar. 



1885. 29:222, pi. 2. 



24 Geologic map of Taconic region; pt 1, southern 



portion. 



American Journal of Science. Ser. 3, no. 197. May 



1887. 33:4.32, pi. 11. 



25 Geologic map of middle and northern Berkshire. 

 Darton, N. H. New York State Geologist. 14th Annual Report. 



1895. 



