Proceedings of the American Academy of Arts and Sciences. 

 Vol. XLIX. No. 10. — October, 1913. 



CONTRIBUTIONS FROM THE ZOOLOGICAL LABORATORY OF 

 THE MUSEUM OF COMPARATIVE ZOOLOGY AT HARVARD 

 COLLEGE. — No. 240. 



STUDIES ON THE PERIPHERAL NERVOUS SYSTEM OF 



AMPHIOXUS. 



By Harkiet Lehmann Ivutchin. 



With Eight Plates. 



