Glacial History of Nezv E?igland Islands. — Upliam. 79 
from its rays. The dorsal fin is composed of twelve or 
more bony rays. 
Measurements. 
mm. 
Length of body to cleft of caudal fin 2go. 
Lengtfi from anterior extremity to base of dorsal fin. . ..112. 
Depth of body at dorsal fin 59. 
Length of pectoral fin 46. 
Width of pectoral fin at base 16. 
Length of pelvic fin 2q. 
Width of pelvic fin at base 10. 
Length of mandibular rami 32. 
Laivrence^ Kansas, May ij, i8gg. 
GLACIAL HISTORY OF THE NEW ENGLAND 
ISLANDS, CAPE COD, AND LONG ISLAND. 
By Warren Upham, St. Paul, Minn. 
Tlie collective name. New England islands, proposed in re- 
cent papers by Mr. J. B. Woodworth and Prof. N. S. Shaler, 
designates the islands lying south and southwest of the penin- 
sula of Cape Cod and sotith of the state of Rhode Island, in- 
chuHng- Xantucket and Martha's Vineyard, the small islands 
associated with them, the Elizabeth islands, and Block island. 
These islands, and Long Island, stretching farther west to the 
Narrows at the entrance of New York bay, and also the neigh- 
boring shores of Rhode Island, the peninsula of Cape Cod, and 
a large area of Plymouth, Bristol, and Norfolk counties, Mass., 
extending from Cape Cod (Barnstable county) northwesterly 
to Boston harbor, I examined during the years 1877 and 1878. 
for comparison with the drift formations of New Hampshire 
(Geology of N. H.\ vol iii, 1878. pp. 300-305). Ever since then, 
my interest in the glacial geology of that region has continued, 
because I found it to have a most admirable development of 
the terminal moraines of the continental ice-sheet, which were 
traced, in part a little earlier and in part a little later, by Smock. 
Lewis, Wright, Chamberlin, Leverett, the present writer, and 
others, from Staten island and northern New Jersey west to Il- 
linois and northwest to Wisconsin, Minnesota, the Dakotas. 
and Manitoba. Professor Shaler, in his recent paper, "Geolo- 
gy of the Cape Cod District" (Eighteenth Annual Report, U. 
