406 



CATALOGUE AND INDEX OP 



[BULL. 127. 



Geologic Philosophy — Continued. 

 Origin of Coal, Petroleum, etc.— 

 Continued. 



1867. Sur les p6troles de I'Am^rique 



du Nord, Hunt, T. S. 



1868. Heport of State chemist of 



Iowa, Heinrich. 



1869. Origin of petroleum, Peckham. 

 Origin of albertite and allied 



minerals, Peckham. 



1870. Oil-bearing limestones of Chi- 



cago, Hunt, T. S. 



1871. Preservation of vegetal remains 



in coal measures, Lesquereux. 

 Gas well at West Bloomfleld, 

 N. Y., Wurtz. 



1872. Oil-hearing limestone of Chi- 



cago, Hunt, T. S. 

 Plants of Cretaceous and Ter- 

 tiary of Kansas and Nebraska, 

 Lesquereux. 



1873. Identification of coal beds, 



Eothwell. 

 Report on second district of 

 Ohio, Andrews, E. B. 



1874. Formation of lignite of Kocky 



Mountain region, Lesq^ue- 

 reux. 

 Carboniferous system of Ohio, 

 Newberry. 



1875. Geology and geography of pe- 



troleum, Wrigley. 



1877. Coal regions of America, Mac- 



farlane, J. 



1878. Oil" region of Tennessee, Kille- 



brew. 

 Bitumen in trap in Connecticut 

 Valley, Dana, J. D. 



1879. Native bitumens and the pitch 

 I lake of Trinidad, Crosby. 



1880. Origin of coal, Berthoud. 

 Origin of anthracite, Hunt, 



T.S. 



1881. Hoys anthracite lies in the 



rocks, Piatt. 

 Theory of coal. Cooper, T. 



1882. Conditions under which coal 



was formed, Newberry. 

 188S. Unsolved problems in geology, 



Dawson, J. W. 

 Progress of geology, 1882, Hunt, 



T.S. 

 Source of bitumen in black 



shales of Ohio, Orton. 

 Origin of coal, Eoy. 



Geologic Philosophy— Continued. 

 Origin of Coal, Petroleum, etc.— 

 Continued. 



1883. Conditions under which coal 



was formed, Newberry. 

 Formation of coal. Science. 

 Origin of carbonaceous shales, 



Newberry. 



1884. Bedford cannel coal, Orton, E. 

 Principles of Paleozoic botany, 



Lesquereux. 



1885. Problems in the study of coal, 



Orton. 

 Geology of natural gas. Ash- 

 burner, White, I. C. 



1886. Orton's Ohio gas and oil report, 



Lesley, J. P. 

 Report on oil and gas, Carll. 

 Vegetable origin of coal, Les- 



queriBux. 

 Address to section of geology, 



American Association, Orton. 



1887. Anticlinal theory of natural 



gas, White, I. C. 

 Petroleum and gas in Ohio, 

 Orton. 



1888. Origin of petroleum and gas, 



Orton. 

 Origin of petroleum, Am. Geol. 

 Petroleum fields of Ontario, 



Bell. 

 Formation of coal beds, Am. 



Geol., Wardroper, Nathurst. 



1889. Petroleum and gas in New York, 



Ashburner. 



Graphitic anthracite of Idaho, 

 Jenney. 



Oil fields of Colorado, New- 

 berry. 

 1891. Asphaltum of California, Hil- 

 gard. 

 Dynamic Geology. 

 1825. Singular conformation of lime- 

 stone, Dewey. 



Snake Hill and Saratoga Lake 

 region, Steele. 



Earthquakes, their causes and 

 efi'ects. Lea. 

 1829. Analysis of essay on tempera- 

 ture of interior of the earth, 

 by Cordier, Cooper. 



Commun on volcanoes and 

 earthquakes. Bell, B. 



Hypotheses of volcanoes and 

 earthquakes, Commun. 



