Proceedings of the American Academy of Arts and Sciences. 

 Vol. XLIII. No. 16. — April, 1908. 



CONTRIBUTIONS FROM THE ZOOLOGICAL LABORATORY OF THE 

 MUSEUM OF COMPARATIVE ZOOLOGY AT HARVARD COLLEGE. 

 E. L. MARK, DIRECTOR.— No. 195. 



THE SENSORY REACTIONS OF AMFHIOXUS 



By G. n. Tarkek. 



