DAETON.] 



NOETH AMEEICAN GEOLOGY. 



401 



1871. 



Geologic PhilOBopby — Cont'nued. 

 Chemic Geology (excepting metamor- 

 phismandrock decay) — Continued. 



1869. Geology of lower Louisiana, 



and rock salt, Hilgard. 

 Vorkommen des gediegenen 



Kupfers auf Keweenaw 



Point, Credaer. 

 Alter der goldfulirenden Gauge, 



etc., Kichthofen. 

 Vorsilurianische Gebilde der 



oberen Halbinsel von Michi- 

 gan, Credner. 

 Chemical geology of gold fields 



of California, Phillips. 



1870. Studies in chemical geognosy, 



Wurtz. 



Cretaceous age of silver in 

 Chihauhua, Mexico, Kimball. 



Geology of White Pine district, 

 Nev., Hague, A. 



Mining industry, survey of 

 fortieth parallel, Hague, J. D. 



Comstock lode. King, C. 



Phosphate beds of South Caro- 

 lina, Shaler. 



Apatite of Canada, Broome. 



Origin of South Carolina phos- 

 phates, Kerr. 



Derivation of copper and asso- 

 ciates on Lake Superior, 

 Pumpelly. 



Phosphate beds, Shaler. 



Origin of guano, Edwards. 



Color of rooks poor in animal 

 remains, Newberry. 



Copper deposits of Harvey 

 Hill, Douglas, J. 



Origin of crystallines. Hunt, 

 T.S. 



Geology of phosphate beds of 

 South Carolina, Packard. 



Notes on some mining districts 

 of Utah, Silliman. 



Copper district of Michigan, 

 Pumpelly. 



Northwest counties of Illinois, 

 Shaw. 



Origin of metalliferous depos- 

 its, Hunt, T. S. 



Notes on Pilot Knob and vicin- 

 ity. Mo., Pumpelly. 



Copper deposits of the Blue 

 Eidge, Hunt, T. S. 



Iron ores of Missouri, Schmidt. 

 BuU. 127 26 



1872. 



1873. 



Geologic Philosophy— Continued. 



Chbmio Geology (excepting raetamor- 

 phism and rock decay) — Continued. 



1873. Mines of Lehigh Zinc Com- 



pany, Pennsylvania, Drinker. 



Cumberland coal fields and iron 

 of Cobequids, Hind. 



Distribution of mining dis- 

 tricts, Eaymond. 



1874. Iron ores of southeast Missouri, 



Moore, P. N. 



Notes on the southern Appa- 

 lachians, Hunt, T. S. 



On belts of fissures, Eaymond. 



Magnetites of New Jersey, 

 Smock, Hunt, T. S. ; Blake, 

 W. P. 



Origin of fissures and their 

 contents. Brown, A. J. 



Salina group, Newberry. 



Lead and zinc region of south- 

 western Missouri, Schmidt 

 and Leonhard. 



Lead region of central Mis- 

 souri, Schmidt. 



Lead mines of southeastern 

 Missouri, Gage. 



Eeport on San Luis division, 

 Colo., Endlich. 



Iron ores' of Canada, Harring- 

 ton, B. J. 



1875. Notes on essays of Hunt, Dana, 



J.D. 



Missouri Geological Survey, 

 Hunt, T. S. 



Origin of flint, GriflSng. 



Porphyry of Island of Lambay, 

 Dana, J. D. 



Eeport on iron ranges of Le- 

 high County, Pa., Prime. 



Geology of Sierra Nevada in 

 relation to vein mining. Bow- 

 man. 



Mines and geology of San Juan 

 Ceunty, Endlich. 



Hematite deposits of the Great 

 Valley, Prime. 



Northwestern Wyoming, Com- 

 stock, T. B. 



Whale lode of Park County, 

 Colo., Jernegan. 



1876. Iron ores of Greenup, Boyd, and 



Carter counties, Ky., Moore. 

 Cornwall iron mine and related 

 deposits. Hunt, T. S. 



