KM) KARM NARAYAN BAHL 



13. References to Literature. 



1. Biihl. K. N. — " On a New Type of Nephridia found in Indian Earth- 

 worms of the Genus Pheretinia", 'Quart. Journ. Micr. Sci.', 

 vol. 64, 1919. 



2. "On the Blood-Vascular System of the Earthworm Phere- 



tima, and the Course of Circulation in Earthworms", ibid., 

 vol. 65. 1921. 



3. Bcddard, F. E. — " Researches into the Embryology of the Oligo- 

 chaeta ", ibid., vol. 33, 1892. 



4. ' A Monograph of the Order Oligochaeta ', Oxford, 1895. 



5. 'The Cambridge Natural History', vol. ii (Earthworms and 



Leeches), 1910. 



6. Bcrgh, R. S. — " Neue Beitrage vaiv Embryologie der Anncliden ", 

 ' Zeit. fur wiss. Zool.', Bd. 1, 1890. 



7. " Nochmals iiber die Entwicklung der .Segmentalorgane ", 



ibid., vol. 66, 1899. 



8. Bourne, A. G. — " On certain Points in the Development and Anatomy 



of some Earthworms ", ' Quart. Journ. Micr. Sci.', vol. 36, 1894. 



9. Goodrich, E. S. — " On the Coelom, Genital Ducts and Nephridia ", 



ibid., vol. 37. 1895. 

 10. " On the Nephridia of the Polychaeta ". ibid., vol. 43, 1898. 



11. Kowalewski, A. — " Embryologische Studienan VViuinern und Arthro- 



poden ", ' Mem. de I'Acad. Imp. Sc. St. Petersbourg ', ser. i, t. xiv, 

 1871. 



12. MacBride. E. W.— ' Text-book of Embryology '. vol. i, 1914. 



13. Meyer, E. — " Studien iiber den Korperbau der Anncliden ", ' IV : 



a. d. Zool. Stat, zu Neapel ', viii, 1888. 



14. Rosa. D. — " Sui nephridii con sbocco intestinale comune del- 



I'AUolobophora antipae ", ' Archivio Zool. Napoli ', vol. 3. 1906. 



15. Staff, F. — " Organogenetischc Untersuchungen iiber Criodrilus 



lacuum ", ' Arb. aus dem Zool. Inst. Wien '. vol. 18, 1910. 



16. Vejdovsky, F. — ' Entwicklungsgeschichtliche Untersuchungen ', Prag, 



1888-92. 

 17. " Zur Entwicklungsgeschichte des Nephridial-Apparates von 



Megascolides australis", "Arch. Mikr. Anat.', Bd. xl, 1892. 

 18. Wilson, E. B. — " The Embryology of the Earthworm ", ' Journ. of 



Morphology '. vol. 3, 1889. 



