Bulletin of the Museum of Comparative Zoology 

 AT HARVARD COLLEGE. 



Vol. XXXYII. No. 3. 



THE REGENERATING NERVOUS SYSTEM OP LUMBRICID^ 

 AND THE CENTROSOME OF ITS NERVE CELLS. 



By Herbekt W. Rand. 



With Eight Plates. 



CAMBRIDGE, MASS., U.S.A.: 



PRINTED FOR THE MUSEUM. 



September, 190L 



