37 
title ‘‘A Document Found Among the 
Papers of the late Rev. Joseph Totten,”’ 
to which reference may be had for de- 
tails. : 
It seems highly probable that this spile 
represents a part of the material used in 
the improvements specified in this docu- 
ment, as the location of the road is prac” 
tically the same now asit was at that time. 
The Silas Bedell mentioned was probably 
the owner of the land where the timber 
was sunk. , 
Dr. Arthur Hollick exhibited speci- 
mens of bowlder till, gravel and sand and 
read the following paper : 
DRIFT AND KAME DEPOSITS ON THE LINE 
OF THE SOUTH SIDE BOULEVARD. 
Recent operations on our roads have 
been prolific in matters of interest to the 
geologist. In the construction of the 
new Boulevard the direction taken was 
directly through the morainal front and 
cuttings were made which exposed a sec- 
tion of the moraine at its extreme south- 
ern edge, at the starting point near Gras- 
mere station. Tosome extent the kame 
deposits further on were also cut through, 
but as these are but little above grade 
level the sections exposed are not exten- 
sive. However, the transition from the 
typical unassorted bowlder till of the 
moraine, to the water assorted gravel and 
sand of the kame deposits, may be fol- 
lowed step by step in the exposure, along 
the side of the road until it reaches the 
level of the salt marsh. 
We have had so few opportunities to 
examine and study the structure and 
composition of the deposits south of the . 
moraine that even these limited exposures 
are welcome. Those which are nearest 
to the moraine consist of coarse cobble 
stones, many of which are but little water 
worn. These grade into coarse gravel 
further on and ultimately into stratified 
sand, which latter often shows the char- 
acteristic flow and plunge structure of 
material deposited in rapidly flowing cur- 
rents. ; 
In composition the sand and gravel are 
mostly finely comiminuted Triassic shale, 
with a fair admixture of quartz, granite, - 
trap and some soapstone, in about the 
same relative proportions in which these 
occur in the till of the moraine in the 
vicinity. Almost the only other record © 
which we have of the character of the 
deposits which enter into the composition 
of the plain region south of the moraine . 
is contained in a paper by Dr. N. L. Brit- 
ton, describing the material exposed ina © 
cutting made for a drain on the Vander- ' 
bilt farm at New Dorp, which was pub- 
lished in our Proceedings for Jan, 14th, 
1888. 
e 4 
