134 



CATALOGUE AND INDEX OF 



[BFU.. 127. 



Cambrian— Contlntied. 

 Nkw York, Pennsylvania, New Jer- 

 sey — Continued. 



1883. Geology of Chester County, 



Pa., Lesley, J. P. ; Hall, C. C. ; 

 F'razer. 



Rand on Chester and Dela- 

 ware counties. Pa., Frazer. 



Discoveries in Wappinger lime- 

 stone, Dutchess County, N. 

 Y., Dwight, W. D. 



Observations in Champlain Val- 

 ley, Walcott. 



Potsdam from Berks County, 

 Pa., Merrill, G. P. 



On rocks from South Mountain, 

 Pa., I.eidy. 



Review of geology of Chester 

 County, Pa., Rand, Frazer, P. 



Geology of Port Henry, N. Y., 

 Hunt, T. S. 



Lower Merion and vicinity, 

 Rand. 



Horizon of South Valley Hill 

 rocks, in Pennsylvania, 

 Frazer. 



1884. New Jersey building stones; 



Cook and Smock. 



Pennsylvania building stones, 

 Lesley, J. P. 



Canadian and Paleozoic out- 

 lines, Willcox. 



Structure of copper belt of 

 South Mountain, Frazer. 



Microscopic structure of build- 

 ing stones, Merrill, G. P. 



Age of Philadelphia gneiss, 

 Frazer. 



Cambrian of United States and 

 Canada, Walcott. 



Potsdam at Saratoga, Walcott 



Hudson Ri \ er age of the Taoonic 

 slates. Hall, J. ; Dana, J. D. 



Age of slates of Scbodack, 

 Rensselaer County, N. Y., 

 Ford. 



Age of rooks near iron mines of 

 Berks County, Pa., Hunt,T. S. 



Reply on geology of Chester 

 County, Pa., Rand, Frazer. 



Sandstone of CLester Valley, 

 Fa., Rand. 



New York building stones, Cook 

 and Smock. 



Flexible sandstone from Penn- 

 sylvania, Lewis. 



Cambrian — Continueft. 

 New York, Pennsylvania, New jEh- 

 SEY — Continued. 

 1884. Position of Philadelphia gneiss, 

 Hitchcock, C. H. 



Geology of Chester Valley and 

 vicinity. Rand, 



Investigations near Pough- 

 keepsie, N. Y., Dwight. 



Hall on Hudson age of Taconic, 

 Dana, J. D. 



Primordial in Stuyvesant, Co- 

 lumbia County, N. Y., Ford. 



Transition from copper series 

 to Potsdam, Wooster. 



Copper deposits of South Moun- 

 tain, Pa., Henderson. 

 188.5. Map of the United States, 

 MoGee. 



Survey of Delaware County, 

 Pa., Hall, C.E. 



Map of Adams, Franklin, .and 

 Cumberland counties, J^a., 

 Lesley, J. P. 



Town geology, the lesson of the 

 Philadelphia rocks, Heilprin. 



Analyses, Delaware County, 

 Pa., Genth. 



Devonian of Green Pond Moun- 

 tain, N. J., Darton. 



Great fault, Scliodack Land- 

 ing, N. Y., Ford. 



Iron ores of northern New York, 

 Hall, C. E. 



Archeau of New Jersey, Brit- 

 ton, N. L. 



Geologic atlas of counties of 

 Pennsylvania, Lesley, J. P. 



Report of State geologist of 

 New Jersey, Cook, G. H. 



Archean-Paleozoio contact in 

 southeast Pennsylvania, Fra- 

 zer. 



Progress of geology, 1883, 

 Hunt, T. S. 



Trap dike across southeast 

 Pennsylvania, Lewis, H. C. 



History of the Taconic ques- 

 tion and relations of the 

 rooks. Hunt, T. S. 

 1886. Development of the North 

 American continent, Le ' 

 Conte. 



Taconic controversy in a nut- 

 shell, WinoheU, N. H. ; Dar- 

 ton. 



