DAETON.] 



NORTH AMERICAN GEOLOGY. 



413 



Geologic Philosophy — Continued. 

 Petrology — Continued. 



1858. Observations sur le m6tamor- 



phiame normal, Virlet 

 d'Aoust. 



Formation des ooliths, Virlet 

 d'Aoust. 



Coal fields of United States 

 and British Provinces, Rog- 

 ers, H. D. 



1859. Paleontology of New York, vol. 



3, Hall, J. 



Formation of siliceous rocks. 

 Hunt, T. S. 



Cement of Roxbury conglom- 

 erate, Hayes, A. A. 



Greenville and Pikens districts, 

 S. C, Lieber. 



Some points in chemical geol- 

 ogy. Hunt, T. S. 



Cement of sandstone and con- 

 glomerate, Jackson, C. T. 



1860. Debituminization of coal, Em- 



mons, E. 



1861. Conversion of certain conglom- 



erates into schists and gneiss, 



Hitchcock, E. 

 General report on geology of 



Maine, Hitchcock, C. H. 

 Geology of Acquidneok, Hitch- 

 cock, C. H. 

 Unstratified rooks of Vermont, 



Hitchcock, E. 

 The theory of metamorphism, 



Jackson, C.T. 

 Origin of some magnesian 



and aluminous rocks, Hunt, 



T.S. 

 Report on geology of Vermont, 



Hitchcock, E. ; Hitchcock, 



E., jr., Hager, and Hitchcock, 



C.H. 



1862. Chemistry of the earth. Hunt, 



T.S. 

 Metamorphism of crystalline 



rocks, Daubr^e. 

 Theories of origin of primitive 



formations, Hunt, T. S. 



1863. Report of survey of Canada to 



1863, Logan. 

 Origin of eruptive and primary 



rocks, Macfarlane, T. 

 Relations of metamorphics, 



Hunt, T. S. 



1864. On silioification of fossils. 



Hunt, T. S. 



Geologic Philosophy— Continued. 

 Petrology — Continued. 



1864. Contributions to lithology, 



Hunt, T. S. 



1865. Metamorphio action in con- 



glomerate, Jackson, C. T. 



1866. Slioken-sided slab from Penn- 



sylvania, Lyman. 



Physical features, general prin- 

 ciples, surface geology of Illi- 

 nois, Worthen. 



G^ologie du Mexique et de 

 FAm^rique Centrale, Virlet 

 d'Aoust. 



1868. Principles of the natural sys- 



tem of volcanic rocks, Rioh- 

 thofen. 



Distortion of pebbles in con- 

 glomerate, Hitchcock, C. H. 



Mittheilungen von der West 

 Kiiste Nord-Amerikas, Richt- 

 hofen. 



1869. Concentric structure of granite 



rocks, Shaler. 



1870. Astronomy and geology, Hunt, 



T.S. 



Silicates in Paleozoic fossils, 

 Hunt, T. S. 



Origin and classification of 

 crystallines, Macfarlane, T. 



Graphite of Lauren tian of Can- 

 ada, Dawson, J. W. 



Comstock lode, King; C. 



GoHlagerstatten Californiens, 

 Burkart. 



Nord-Amerikanische Schiefer- 

 porphyroide, Credner, H. 



1871. Hudson River palisades, 



Wurtz. 



Relations in vicinity of Boston, 

 Shaler. 



Origin of granite and syenite, 

 Jackson, C. T. 



Derivation of copper and asso- 

 ciates on Lake Superior, 

 Pumpelly. 



Origin of crystallines. Hunt, 

 T.S. 



1872. Origin of eozoonal limestone 



of Chelmsford, Bur bank. 



Perry. 

 Notes on granitic rocks. Hunt, 



T.S. 

 Address of Hunt to American 



Association, Dana, J. D. 



