Bulletin of the Museum of Comparative Zoology 

 AT HARVARD COLLEGE. 



Vol. LVI. No. 2. 



GEOLOGICAL SERIES, Vol. Z. 



THE SQUANTUM TILLITE. 



Bt Robert W. Sayles. 



With Twelve Plates. 



CAMBRIDGE, MASS., U. S. A. 



PRINTED FOR THE MUSEUM. 



January, 1914. 



