Correspondence. 191 
portion lo the size of tlie streams. Tliis is due to the meeting of the 
waters in nrlacial times. Tiiis fact lias presented an insolvabie problem 
to some, for, if I remember correctly, professor Shaler was unable to ex- 
plain this phenomenon in his rejiort to the "lovernment on the marsh 
lands along the Atlantic coast. Take, for instance, the Setuck ri\er at 
Eastport: three branches meet together where it enters the bay, and 
even the main stream is reinforced by another tributary that enters it 
above the railroad bridge, and where a large swamp once existed. The 
water has been dammed u() and forms a beautiful lakelet at this point. 
The other branches were likewise augmented by lesser streams during 
the glacial floods, and where they all came together of course a larger 
depression was the result. It is interesting to note also that a line of 
kame ridges exists along the northern margin of the bays where these 
converging and diverging currents had their ramifications. Tiie Mon- 
lauk division of the Long Island railroad cuts through (piite a promi- 
nent one at the Manor .1 unction, about half a mile west of the Eastport 
station. Here the Little Setuck has its rise, but the old channel, now 
dried up, can be seen a little farther north, where it is crossi-d by the 
Manor branch of the railroad. These old ri\er channels can still hi' 
traced to the front of the moraim- about two miles distant, but lliey 
ramifj' in such away that no single channel can be defined, perhaps, 
from the bay to the ridge. That is to say, the old glacial rivers on is- 
suing from the front of the terminal moraine dividi' and suhdixide in 
such a way that their individuality becomes lost, but they base left 
their impress so i)lainly on the face of the island that h(> who runs may 
read, if he is not I'lilirely blind to the wondei'ful works of nature. 
INIany of tlu' ideas here prescnti'd ha\r ln-cii suggested in prcNJous pa- 
pers in this maga/.ini', i)ut have ntni-r Ix-en fully formulated. 1 have 
endeavored to give here the facts, as they appear tome, after more than 
twenty years of stiuly. and although the presentation is rather imi)er- 
fect, I hope it may incite others, more competent, to examine the Kpx 
and rf(A/r?w of Long Island along the saim- line of thought. It is surely a 
subject worthy of attention, and if the \ iews here presented are verified 
they will establish, Ithiiik, the unity of the (ilacial period as far as 
Long Island is cinicerned. If our stoi'y of these '//>.v and ilmnix be true. 
it will show that all the morainic rid^^es an' the same as lo linu' and 
origin, and not the I'esult of iwoseparate and distinct ice-sheets. 1 may 
say. in closing, that the tlitfereuce as to the modification of the two 
morain(>s is due to the fact that the eiaeial streams after breaking 
through the northern series of hills, were less successful in their on- 
slaught i)n the southern rid Lie. for the i-eason that I lu-ir forces had become 
more divided: there aie few jtljices in the terminal moraine as it is 
called, whei'e the cu rreii Is swe[it 1 1) I'ougli to the plain beyond: ther-efore, 
as before stated, the old ri\-er channels can only be traced along the 
lines of kettle-hole depression; and along such lines the moraine is more 
or less modified. l)ut not so much as the northern series of hills where 
the floods of water were more jHiwerful. H. ('arviil Lewis would ha\i' 
