16 PROTOZOOLOGY 



eral investigators. While the cultivation has not yet thrown much 

 light on this and similar amoebae, it has revealed certain evidences 

 that there is no sexual reproduction in these amoebae. 



References 



BtJTSCHLi, O. 1887-1889 Bronn's Klassen und Ordnungen des 



Thier-reichs. Vol. 1, Part 3. 

 Calkins, G. N. 1933 The biology of the Protozoa. 2 ed. Philadelphia. 

 Cole, F. J. 1926 The history of protozoology . London. 

 DoBELL, C. 1911 The principles of protistology. Arch. f. Protis- 



tenk., Vol. 23. 

 1932 Antony van Leeuivenhoek and his "little animals.'' New 



York. 

 1939 The common flagellate of the human mouth, Tri- 

 chomonas tenax (O.F.M.): its discovery and its nomenclature. 



Parasitology, Vol. 31. 

 DoFLEiN, F. and E. Reichenow. 1929 Lehrhuch der Protozoen- 



kunde. 5 ed. Jena. 

 DujARDiN, F. 1841 Histoire natiirelle des Zoophytes. Paris. 

 Kudo, R. R. 1944 Manual of Human Protozoa. Springfield, Illinois. 

 Nordenskiold, E. 1928 The history of biology. New York. 

 Woodruff, L. L. 1937 Louis Joblot and the Protozoa. Sci. 



Monthly, Vol. 94. 

 1939 Some pioneers in microscopy, with special reference 



to protozoology. Tr. N. Y. Acad. Sci., Ser. 2, Vol. 1. 



