Volume II 



NUMBEE 4 



THE 



UNIVERSITY OF MISSOURI 

 STUDIES 



EDITED BY 



FRANK THILLY 

 Professor of Philosophy 



REGENERATION OF CRAYFISH 

 APPENDAGES 



MARY ISABELLE STEELE, M. A. 



Sometime Fellovj in Zoology 



PUBLISHED BY THE 



UNIVERSITY OF MISSOURI 

 June, 1904 



PRICE. 75 CENTS 



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