8 BIBLIOGRAPHY OF THE TUNICATA. 



BALFOUK, F. If. 



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1898. Zur Entstehung des Zwischenkorpers. Anat. Anzeig. 

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1898. Ueber Kernformen nnd Spharen in den Epidermis- 

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1898. Zur Kenntnis der Zellsphare. Eine Zelleustudie am 

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Bancroft, Frank Watts. 



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1898. On the Anatomy of Chelysoma productum Stimpson. 

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1899. Zool. Centralbl. VI, pp. 836-837. 



1898. Ovogenesis in Distaplia occidentalis Ritter (MS.), 

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