1894. | NEW YORK ACADEMY OF SCIENCES. 227 
Emmons’ sketch represents quite truly the general relation 
throughout the strip, but along this particular section there is 
no external evidence of the Calciferous and Chazy as shown. 
Similar drift deposits extend around the head of Willsboro’ 
Bay and on Willsboro’ Point. Willsboro’ Neck is covered with 
five to ten feet of coarse sand without boulders, and at a depth of 
four or five feet large shells, resembling clam shells, are said to 
have been found, but to have fallen to pieces on exposure to the air. 
Delta deposits. Bluffs of white sand, frequently stratified, and 
in nearly every case underlain by clays, occur in several localities. 
On the Boquet near the Westport boundary, again at the curve 
south of Willsboro’ Falls, are bluffs of white sand twenty or 
thirty feet high. Around the last point on the lake shore, before 
reaching the mouth of the Boquet River, the Calciferous disap- 
pears in a cliff 12 feet high, rising to bluffs 20-40 feet high on 
either side of the outlet, and forming a sand spit extending out 
into the lake. The sand shows stratification in the upper undis- 
. 
ea ee Os EE 
Fic. 2. S—EcTION OF Five Mites ALonG Roap NortH or Essex 
VILLAGE. 
turbed layers, and the top is somewhat coarser. The sand is 
white, fine and angular like a building sand. On the beach it is 
overlain by several inches of reddish black, magnetic sand, rich 
in magnetite or ilmenite, garnet or zircon crystals. The Boquet 
was formerly navigable to the falls, a distance of three miles, by 
the largest vessels on the lake, but now its channel, changed and 
obstructed by these sand accumulations, which form a bar across 
its mouth, admits only the smallest craft. Several sand hills oc- 
cur in the interior. The first is a steep barren hill in northwest- 
ern Willsboro’, which is located as an “ancient beach” by Em- 
mons, on his map of the Tertiary of Essex Co., contained in 
the 200th Annual Assembly Report (1838).* 
* Emmons outlines on the same map a so-called * Tertiary basin,” reaching 
from the Paleozoic of the shore, across the Boquet, following the valley of the 
river along its west bank, The general relations of the limestones and shales at 
intervals along shore are roughly but clearly indicated on this old map. 
