A. E. Verrill—Post-pliocene fossils of Sankoty Head. 365 
nearly all of which can now be assigned to their actual posi- 
tions in the strata. 
Mr. Scudder made a study of the stratification, and as his 
observations do not agree perfectly with the account given by 
Desor and Cabot, he has kindly furnished the following descrip- 
tion of the locality. The most important point from which it 
differs from the former one is his conclusion that the fossilifer- 
ous beds are conformable to the strata of sandy clay, forming 
the base of the cliff. Mr. Desor stated that they are uncon- 
formable, and referred the clays to the Miocene Tertiary, like 
those of Martha’s Vineyard. 
Note on the Post-pliocene Strata of Sankoty Head; by 8. H. 
CUDDER 
“The sands and gravels forming the bluff at Sankoty Head, 
Nantucket, rest at base upon a thick bed of light brown sandy 
but extending upward to about 
twenty feet above the sea-level. As the beds which rest upon it 
1p to the southwest, and as the anchor brings up clay from 
Sankoty Head eastward for half a mile, this clay bed is probably 
of ee thickness, 
impregnated with iron. T vel is followed by about four 
feet of sands, subdivisible into separate | : at an 
Inch or two of a very fin e white sand, followed by nearl 
n between the fragments. : : 
This bed is followed by about ten feet of fine white thinly 
bedded sand, and this by the stratified drift of the island, to a 
