DAKTON.] 



NORTH AMERICAN GEOLOGY. 



41 



Archean and Algonkian — Continued. 

 New York, New Jersey, and Penn- 

 sylvania — Continued. 



1887. Tilly Foster iron mine, Rutt- 



man. 

 Peridotites near Peekskill, 



N. Y., Williams, G. H. 

 Map of the United States, 



Hitchcock, C. H. 

 Report for 1886, survey of New 



Jersey, Britton, N. L. 

 Norites of Cortlandt series, 



Williams, G. H. 

 Kersantite (Croton, N. Y.), 



Newberry. 

 Serpentines in vicinity of New 



York, Britton, N. L. 

 Additional notes on Staten 



Island, Britton, N. L. 

 Parallel structure in rocks, 



Callaway. 

 Notes on Mohawk Valley, New 



York, Beecher and Hall. 

 Minerals of Staten Island, 



Chamberlin, B. B. 

 Materials of the Appalachians, 



Claypole. 

 Radnor Township, Delaware 



County, Pa., Rand. 

 Eozoonal rock on Manhattan 



Island, Gratacap. 

 Structure and origin of Staten 



Island serpentines, Gratacap. 

 New Jersey Geological Survey 



report, Raymond. 

 Geological surveys. New Jer- 

 sey, Cook, G.H. 

 Recent field work, New Jersey, 



Britton, N. L. 

 Borings on Staten Island, Hol- 



lick. 

 Cortlandt rooks, Harker. 



1888. Montville serpentine, Merrill, 



G. P. 



Plant from limestone of Sus- 

 sex County, N J, Britton, 

 N.L. 



Borings on Staten Island, Brit- 

 ton, N. L. 



Building stones of New York, 

 Smock. 



Contact metamorphism, Cort- 

 landt series, Williams, G. H. 



Dikes of Hudson River High- 

 lands, Kemp. 



Archean and Algonkian — Continued. 



New York, New Jersey, and Penn- 

 sylvania — Continued. 



1888. Diorite dike. Forest of Dean, 



New York, Kemp. 



Distinctive features of New 

 York and Highland gneisses, 

 Martin, D. S. 



Gabbros and diorites of Cort- 

 landt series, Williams, G. H. 



Map of vicinity of New York 

 City, Martin, D. S. 



Rosetown extension of Cort- 

 landt series, Kemp. 



Four great sandstones, Clay- 

 pole. 



State line serpentines, Chester. 



1889. Artesian wells. New Jersey, 



Cook, G. H. 

 Map of New Jersey, Cook, G. H. 

 Crystallines in New York re- 

 gion, Britton, N. L. 

 Oneida County, N.Y., Brigham. 

 Ophiolite, Warren County, 



N. Y., Merrill, G. P. 

 Well at Woodham, Long Island, 



Lewis, Elias. 

 Rocks of Philadelphia and New 



York, Rand. 

 Artesian wells in New Jersey, 



Nason. 

 Studies of Triasslo rocks in 



New Jersey, Nason. 



1890. Excursion in northern Appala- 



chians, Williams, G. H. 

 Metamorphio strata of south- 

 eastern New York, Merrill, F. 



J.H. 

 Iron ores of the United States, 



Hunt, T. S. 

 Iron ores of New York, Smock. 

 Clays near Morrisauia, N. Y., 



Martin, D. H.; Merrill, F. 



J.H. 

 Archean axes of eastern North 



America, Dana. 

 Areas of continental progress 



in North America, Dana. 

 Analyses of intrusive diorite 



near Peekskill, N. Y., Chatard. 

 Studies of Archean rocks of 



New Jersey, Nason. 

 Zircon rocks in Highlands of 



New Jersey, Nason and Fer- 



rier. 



