450 BULLETIN 120, UNITED STATES NATIONAL MUSEUM. 



British Museum (Natural History), Cromwell Eoad, London, 

 S. W., England. 



Labratory of Comparative Embryology, College of France, Eue 

 des Ecoles, Paris, France. 



Zoological Labratory, Institute for Tropical Hygiene, Mauritskade 

 57, Amsterdam, Holland. 



Zoological Museum, University of Berlin, Invalidenstrasse 43, 

 Berlin, N. 4, Germany. 



ASIA. 



The Indian Museum, Calcutta, India. 



Zoological Laboratory, The University of Tokyo, Tokyo, Japan. 

 Bureau of Science, Manila, Philippine Islands. 

 Parasitology Museum, Union Medical College, Peking, China. 

 Department of Agriculture and National Resources, Bureau of 

 Science, Manila, Philippine Islands. 



AUSTRALIA. 



Zoological Laboratory, University of Sidney, Sidney, Australia. 



Wellcome Tropical Research Laboratories, Gordon Memorial Col- _ 

 lege, Khartoum, Sudan, Egypt. M 



The South African Institute for Medical Research, Johannesburg, 

 South Africa. 



11. A LIST OF THE LITERATURE TO WHICH REFERENCE IS MADE IN 



THIS PAPER. 



Andrk (1912.a). Catalogue des Invertebres fie la Suisse, vol. 6. Infusoires: 

 Not found in this country. In Revue Suisse de la Zoologie, vol. 20. 



(1913). Recherches parasitologiques sur les Amphibiens de la Suisse, 



II: Revue Suisse de la Zoologie, vol. 21, p. 6, May. 



Aedt (1907). Die Entwicklung der Kontinente und ihrer Lebewelt. Leipsig. 



AwEBiNZEW (1913). Ergebnisse der Untersuchungen iiber parasitische Protozoen 

 der tropisclien Region Afrlkas, II : In Zoologischer Anzeiger, vol. 42, No. 2, 

 23 Mai. 



Balbiani (1881). Lecons sur les Protozoaires : In Journ. Micrographie, vol. 5. 



Barkeix (1916). The Influence of Silurian and Devonian Climates on the Rise 

 of Air-Breath ing Vertebrates: In Bulletin of the Geological Society of Amer- 

 ica, vol. 27, June 7. 



Berry (1913). Some Paleontoingical Results of the Swedish South Polar Expe- 

 dition under Nordenskiold : In Science, U. S., vol. 38, p. 984, Nov. 7. 



(1917). Fossil Plants from Bolivia and Their Bearing upon the age of 



Uplift of the Eastern Andes : In Proc. of the U. S. National Museum, vol. 54, 

 pp. 103-164, Oct. 27. 



