OF WESTERN NORTH AMERICA. 



9 



entitled ^'L'evolution des mammiferes tertiaires, methodes et prin- 

 cipes, importance des migrations/'^ covering with fullness and pre- 

 cision the same subject of the Tertiary mammal succession of Europe 

 and the migrations between the continents of Eurasia, North America, 

 and Africa. For reasons fully set forth in the writer's correlation 

 paper of 1899, he has adopted the faunistic subdivisions of France as 

 classified by Deperet. 



Taking renewed advantage of Professor Deperet's research and 

 availing himself of the able cooperation of Doctor Matthew, the 

 writer now outlines the methods and data of Tertiary correlation of the 

 continental mountain and plains regions, and again treats the subject 

 of migrations and American and European parallels from the stand- 

 point of the remarkable American succession, which is now without 

 a gap except in the Pliocene. The Pacific coast and Atlantic coast 

 Tertiaries are not included in this review. 



Many of the ideas are developments of those first expressed in the 

 writer's correlation addresses above referred to and in his other ad- 

 dresses: ''Rise of the Mammalia in North America" (1893),'' and 

 ''Ten years' progress in mammalian paleontology" (1903).^ A 

 preliminary abstract of the present paper was published by permis- 

 sion of Director Walcott in March, 1907.^ 



BIBLIOGRAPHY OF WESTERN CENOZOIC HORIZONS 

 AND THEIR CORRELATION. 



The following bibliography contains only the most significant 

 papers : 



RECENT BIBLIOGRAPHY AND FORMATION NAMES. 



Weeks, F. B. Bibliography of North American geology, paleontology, petrology, 



and mineralogy for the years 1892-1900, inclusive. U. S. Geol. Survey, 



Bulls. Nos. 188, 189, 1902. 

 North American geologic formation names. Bibliography, synonymy, and 



distribution. U. S. Geol. Survey Bull. No. 191, 1902. 

 Bibliography and index of North American geology, paleontology, petrology. 



and mineralogy for the years 1901-1905, inclusive. U. S. Geol. Survey, 



Bull. No. 301, 1906. 



GENERAL CORRELATION OF TERTIARY HORIZONS. 



Clark, W. B. Correlation papers— Eocene. The Eocene of the United States. 

 U. S. Geol. Survey, Bull. No. 83, 1891, pp. 9-159. 



Eocene of the Atlantic coast, Gulf States, Pacific coast; historical sketch of the Eocene 

 of the interior. Table showing relative position of interior Eocene deposits. Map. 

 Extensive bibliography. 



aL'evolution des mamniifferes tertiaires. [1] Methodes et principes: Compt. Rend. Acad. Sci. Paris, 

 vol. 140 (June 5, 1905), p. 1517. [2] Reponse aux observations de M. Boule: Idem, vol. 141 (July 3, 1905), 

 p. 22. [3] Importance des migrations: Idem, vol. 141 (Nov. 6, 1905), p. 703. [4] Importance des migra- 

 tions: Idem, vol. 142 (Mar. 12, 1906), p. 618. 



b Proc. Am. Assoc. Adv. Sci., 1894, pp. 188-277. Am. Jour. Sci., 3d ser., vol. 46, 1893, pp. 379-392, 448-446. 



c Compt. Rend. 6^ Cong, intern, de zoologie, 1904, pp. 86-113. 



d Tertiary mammal horizons of North America: Bull. Am. Mus. Nat. Hist., vol. 23, art. 11, March 30, 

 1907, pp. 2,37-253. 



