Bulletin of the Museum of Comparative Zoology 



AT HARVARD COLLEGE. 



Vol. LVI. No. 1. 



GEOLOGICAL SERIES, Vol. Z. SHALER MEMORIAL SERIES, No. 1. 



GEOLOGICAL EXPEDITION TO BRAZIL AND CHILE, 



1908-1909. 



By J. B. WOODWORTH. 



With Thirty-seven Plates. 



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



PRINTED FOR THE MUSEUM. 



November, 1912. 



