LIST OF AUTHORITIES. 621 



Gabb, W. M. Whitney's Geol. Survey of California. 



Gaudry, A. Monde Animale. 



Geikie, A. Text-Book of Geology. 



Geikie, J. Great Ice Age. 



Gilbert, G. K. Geology of the Henry Mountains. 



Gratacap. Concretions or Nodules. Am. Nat., 1884. 



Gunther, A. Trans. Roy. Soc, 1871. 



Guyot, A. Physical Geography. 



Hall, J. Rep. Palaeontology of N. Y. ; Rep. Geol. of Iowa; Rep. on State 

 Cabinet of N. Y. 



Hayden, F. V. Rep. Geog. and Geol. Survey of Territories, 1871-'73. 



Heer, Prof. Primeval World of Switzerland. 



Hilgard, E. W. Rep. Agric. and Geol. of Miss., 1860. 



Hitchcock, C. H. Geol. Map of U. S. 



Hitchcock, E. Ichnology of Mass., 1858. 



Holmes, W. H. Drawing of Geyser Eruption. 



Howell, E. E. U. S. Geog. Survey by Wheeler, vol. iii — Geology. 



Jukes and Geikie. Manual of Geology. 



Huxley, T. H. Manual of Anat. of Vertebrates; Anat. of Invertebrates; 

 Rhynchosaurs. Quar. Jour. Geol. Soc, 1887. 



Jackson, W. H. Photograph of Geyser Eruption. 



Johnstone, A. K. Phys. Atlas, last edition. 



King, Clarence. Geol. Survey of 40th Parallel, vol. i. 



Leidy, J. Cretaceous Reptiles of U. S. ; Smithsonian Contributions, 1865 ; 

 Fossil Vertebrates of U. S. ; Hayden's Geol. Survey of Terr., vol. i. 



Lesley, J. P. Manual of Coal and its Topography. 



Lesquereux, L. Owen's Rep. Geol. of Ky. ; Owen's Rep. Geol. Ark. ; 

 Hayden's Geog. and Geol. Survey, vol. vi ; Cret. Flora of U. S. 



Logan, W. Rep. Geol. Canada. 



Lyell, C. Principles of Geology ; Elements of Geology ; Antiquity of Man. 



Mallet, F. R. Barren Island. Geol. Survey of India. 



Mantell, G. A. Fossils of British Museum. 



Maout and Decaisne. General System of Botany. 



Marsh, O. C. Jurassic and Cretaceous Reptiles and Birds, and Jurassic 

 and Tertiary Mammals; Am. Jour, of Sci., 1871-90. 



Meek and Worthen. Geol. Survey of 111., vols, ii, iii, iv, v, vi. 



Meek, F. B. Whitney's Geol. Survey of California, vol. i; Newberry's 

 Geol. Survey of Ohio Pal., vols, i and ii; Palaeontology of Upper Missouri; 

 Smithsonian Contributions, 1864. 



Murchison, R. I. Siluria. 



Newberry, J. S. Rep. Geol. Survey of Ohio; Geol. of Macomb Expedi- 

 tion ; Pacific R. R. Reports, vol. vi. 



Nicholson, H. A. Manual of Palaeontology; Manual of Zoology ; Ancient 

 Life History. 



Osborn, H. F. Mesozoic Mammals; Jour. Acad. Nat. Sci., Philadelphia, 

 1888; Mammalia of Uintah Formation. Mem. Am. Phil. Soc, 1889. 



Owen, D. D. Rep. Geol. of Wisconsin, Iowa, etc. 



Owen, R. British Fossil Mammals ; Palaeontology ; Trias Reptiles ; Quar. 

 Jour. Geol. Soc, 1887. 



