330 BULLETIN: MUSEUM OF COMPARATIVE ZOÖLOGY. 
BIBLIOGRAPHY. 
Baldwin, $. P. 
Pleistocene history of the Champlain valley. Amer. Geol., 1894, vol. 13, 
p. 170-184. 
Chalmers, R. 
Report on the surface geology and auriferous deposits of southeastern 
Quebec. Can. Geol. Sur., J, 1898, new ser., vol. 10, 160 pp. 
Gannett, Henry. 
A dictionary of altitudes in the United States. U. S. G. S., Bull. 274, 
1906, 1072 pp. 
Hitchcock, C. H., Hitchcock, E., Hitchcock, E., Jr., and Hager, A. D. 
Report on the geology of Vermont. 1861, 2 volumes. 
Taylor, F. B. 
The correlation and reconstruction of recessional ice borders in Berkshire 
county, Mass. Journ. Geol., 1903, vol. 11, p. 323-364. 
Upham, Warren. 
Late glacial or Champlain subsidence and reölevation of the St. Lawrence 
River basin. Amer. Jour. Sci., 1895, ser. 3, vol. 49, p. 1-18. 
Woodworth, J. B. 
Ancient water levels of the Champlain and Hudson valleys. N. Y. State 
Mus. Bull. 84, 1905, 265 pp. 
