3 V^^ 



Bulletin of the Museum of Comparative Zoology 



AT HARVARD COLLEGE. 



Vol. LVIII. No. 10.- 



OCEANOGRAPHY AND PLANKTON OF 



MASSACHUSETTS BAY AND ADJACENT WATERS, 



NOVEMBER, 1912 -MAY, 1913. 



By Henry B. Bigelow. 



With One Plate. 



I Published by Permission of H. M. Smith, U. S. Fish Commissioner]. 



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



PRINTED FOR THE MUSEUM. 



November, 1914. 



