BIBLIOGEAPHY 451 



HARSHBERGER, J. W. "The Plant Formations of the Bermuda 

 Islands." Proc. Acad. Nat. Sc. Philadelphia, Vol. LVIL, pp. 695 

 704. 1905. 



HARSHBERGER, J. W. " Original Centers Concerned in North 

 American Plant Distribution." Proc. Acad. Nat. Sc. Philadelphia, 

 p. 2. 1905. 



HART, HENRY CHICHESTER. " On the Botany of the British Polar 

 Expedition 18751876." Journal of Botany, pp. 143. 1880. 



HARTERT, ERNST. "Trochilidae." Tierreich. 9th Lief. Berlin, 

 1900. 



HAUG, E. " Les geosynclinaux et les Aires Continentales." Bull. 

 Soc. Geol. France (3), Vol. XXVIII., pp. 617 711. 1900. 



HAY, 0. P. " Bibliography and Catalogue of the Fossil Vertebrata 

 of North America." Bull. U. S. Geol. Survey, No. 179. 1902. 



HAY, 0. P. "The Fossil Turtles of North America." Carnegie 

 Institution, Washington D.C. 1908. 



HAY, 0. P. " The Geological and Geographical Distribution of 

 some Pleistocene Mammals." Science (N.S.), Vol. XXX., pp. 890 

 893. 1909. 



HAY, 0. P. " On the Changes of Climate following the Disappear- 

 ance of the Wisconsin Ice-sheet." From "Die Veranderungen 

 des Klimas seit der letzten Eiszeit," pp. 371 374. Stockholm, 

 1910. 



HAYES, C. W. and M. R. CAMPBELL. "The Relation of Biology to 

 Physiography." Science (N.S.), Vol. XII., pp. 131133. 1900. 



HEDLEY, C. "The Range of Placostylus, a Study in Ancient 

 Geography." Proo. Linn. Soc. New South Wales (2), Vol. VII. 

 1892. 



HEDLEY, C. " Considerations on the Surviving Refugees in Austral 

 Lands of Ancient Antarctic Life." Proc. R. Soc. New South Wales, 

 Vol. XXIX., pp. 278286. 1895. 



HEDLEY, C. "A Zoogeographical Scheme for the Mid-Pacific" 

 Proc. Linn. Soc. New South Wales, pp. 391417. 1899. 



HEILPRIN, A. " The Geographical and Geological Distribution of 

 Animals." London, 1887. 



HEILPRIN, A. " Explorations on the West Coast of Florida." Trans. 

 Wagner Free Institute of Science, Philadelphia, Vol. I. 1887. 



HEILPRIN, A. "The Bermuda Islands." Philadelphia, 1889. 



HEILPRIN, A. " The Origin and Relations of the Floras and Faunas 

 of the Antarctic and adjacent Regions." Science (N.S.), Vol. III., 

 pp. 305320. 1896. 



HELLER, EDMUND. " Papers from the Hopkins Stanford Gfalapagos 

 Expedition, 18981899. Reptiles." Proc. Washington Acad. Science, 

 Vol. V., pp. 3998. 1903. ' 



HELLER, E. "Mammals of the Galapagos Archipelago." Proo. 

 Calif. Acad. Sc. (3), Vol. III., pp. 233250. 1904. 



HEMSLEY, W. B. "Botany of Mexico and Central America." 

 Vol. IV. Biologia Centrali-Americana. London, 18861888. 



G G 2 



