DOROTHY B. SPANGENBERG 423 



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special reference to abnormal forms and bnd formation. F/n/.s-. Zool. 25: 

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4. Ham, R. G., D. C. Fitzgerald, and R. E. Eakin. 1956. Effects of litliium ion 



on regeneration of hvdra in a chemically defined environment. /. Exp. 

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5. Ham, R. G., and R. E. Eakin. 1958. Loss of regenerative capacity in hydra 



treated with lipoic acid. J. Exp. Zool. 139: 55-68. 



6. Ham, R. G. and R. E. Eakin. 1958. Time sequence of certain physiological 



events during regeneration in Hydra. J. Exp. Zool. 139: 33-54. 



7. Kanajew, /. 1930. Zur Frage der Bedeutung der interstiticllen Zellen bei Hvdra. 



Roux. Arch. 122: 736-759. 



8. Moore, J. 1951. Induction of regeneration in the hydroid Corchilophora lacustris. 



J. Exp. Biol. 28: 72-93. 



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Quart. J. Microsc. Sci. 93: 269-288. 



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Amer. Naturalist 36: 578-583. 



11. Spangenberg, D. B., and R. E. Eakin. 1961. A study of variation in the regen- 



eration capacity of hydra. (Manuscript submitted)." 



12. Spangenberg, D. B., and R. E. Eakin. 1961. Histological studies of mechan- 



isms involved in hydra regeneration. ( Manuscript submitted ) . *" 



13. Spangenberg, D. B. and R. E. Eakin. 1961. The effect of lipoic acid on regen- 



eration of Chlorohydra viridissima. (Manuscript submitted).* 



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Hydra und Tuhidaria und ihre Bedeutung fur die Regeneration. Roux 

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"The investigations reported in these three manuscripts submitted to the Journal 

 of Experimental Zoology have been published as a doctoral dissertation: A Study of 

 Mechanisms Involved in Normal and Abnormal Regeneration of Hydra, 1960. The 

 University of Texas. 



