68 BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY. 
BIBLIOGRAPHY. 
Bascom, F. 
1900. Volcanics of Neponset Valley, Mass. Bull. Geol. Soc. Amer., vol. 
11, pp. 115-126. 
Benton, E. R. 
81. ‘The amygdaloidal melaphyre of Brighton, Mass. Proc. Bost. Soc. Nat. 
Hist., vol. 20, pp. 416-426, pl. 4. 
Crosby, W. O. 
°80. Contributions to the geology of eastern Massachusetts. Occas. Papers. 
Bost. Soc. Nat. Hist., vol. 3, vii, 286 pp., 5 plates, map. 
Crosby, W. O. 
°89. Physical history of the Boston Basin. Boston, 22 pp. 
Davis, W. M. 
°81. Banded amygdules of the Brighton amygdaloid. Proc. Bost. Soc. Nat. 
Hist., vol. 20, pp. 426-428. 
White, T. G. 
°97. A contribution to the petrography of the Boston Basin. Proc. Bost. 
Soc. Nat. Hist., vol. 28, pp. 117-156, 5 plates. 
Wolff, J. E. 
82. The great dike at Hough’s Neck, Quincy, Mass. Bull. Mus. Comp. 
Zool., vol. 7, pp. 231-242. 
