BIBLIOGRAPHY 
459 
Ortmann, A. E. “ A Monograph of the Najades of Pennsylvania.” 
Memoir Carnegie Museum, Vol. IV., pp. 279—347. 1911. 
Osborn, H. F. “The Rise of the Mammalia in North America.” 
Studies from the Biol. Labs, of Columbia Coll. (Zool.), Vol. I., 
pp. 1—45. 1893. 
Osborn, H. F. “ Faunal Relations of Europe and America during 
the Tertiary Period.” Ann. N. York Acad. Sc., Vol. XIII., pp. 46 
—50. 1900. 
Osborn, H. F. “ American Eocene Primates, and the supposed 
Rodent family Mixodectidae.” Bull. Amer. Mus. Nat. Ilist., 
Vol. XVI., pp. 169—214. 1902. 
Osborn, H. F. “ An Armadillo from the Middle Eocene (Bridger) 
of North America.” Bull. Amer. Mus. Nat. Hist., Vol. XX. 1904. 
Osborn, H. F. “New Oligocene Horses.” Bull. Amer. Mus. 
Nat. Hist., Vol. XX., pp. 167—179. 1904. 
Osborn, H. F. “Ten Years Progress in the Mammalian Palaeon¬ 
tology of North America.” Extr. d. Comptes rendus du 6me Congr. 
Int. d. Zoologie de Berne. (1904.) 1905. 
Osborn, H. F. “The Causes 'of Extinction of Mammalia.” 
American Naturalist, Vol. XL., pp. 769—795 and 829—859. 1906. 
Osborn, H. F. “Cenozoic Mammal Horizons of Western North 
America.” Bull. U.S. Geological Survey No>. 361. Appendix by 
W. D. Matthew. “ Faunal Lists of the Tertiary Mammalia of the 
West.” 1909. 
Osborn, H. F. “ The Age of Mammals in Europe, Asia and 
North America.” New York, 1910. 
Osgood, W. H. “ Scaphoceros tyrelli, an extinct Ruminant from 
the Klondike Gravels.” Smiths. Miscell. Collections, Vol. XLVIII., 
pp. 173—185. 1907. 
Osgood, W. H. “ A Revision of the Mice of the American Genus 
Peromyscus.” North American Fauna No, 28, Washington, pp. 1— 
285. 1909. 
Osgood, W. II. “Biological Investigations in Alaska and Yukon 
Territory.” North American Fauna No. 30, Washington, pp. 1—96. 
1909. 
Packard, A. S. “The Labrador Coast.” New York, 1891. 
Packard, A. S. “The Origin of the Subterranean Fauna of North 
America.” American Naturalist, Vol. XXVIII., pp. 727—751. 1894. 
Packard, A. S. “ On the Larval Forms of several Exotic Cerato- 
campid moths.” Psyche, Vol. IX., pp. 279—280. 1901. 
Pagenstegher, A. “Die Lepidoptoren d. Nordpolargebietes.” 
Jahrb. Nassau. Ver. f. Naturk., Vol. L. 1897. 
Pagenstecher, A. “Die Lepidopteren d. Hochgebirges.” Jahrb. 
Nassau. Ver. f. Naturk., Vol. LI., pp. 89—178. 1898. 
Pagenstecher, A. “Die Lepidopteren-fauna der Antillen.” Jahrb. 
Nassau. Ver. f. Naturk., Vol. LX., pp. 91—102. 1907. 
Pagenstecher, A. “Die Geographische Verbreit-ung d. Schmetter- 
linge.” Jena, 1909. 
