428 J. D. Dana—Depression of Southern New England 
height of the uppermost terrace of stratified drift along the 
river to the Sound. The heights, on the west side of the Con- 
necticut, going southward, are as follows :* 
2 m. below the Narrows, the Maromas plain---------- 1334 ft. 
anny - near Higganum ----.-.- 00-105 “ 
er zi near Haddam station.... 82- 85 “ 
10jm “ i near Goodspeed’s station - 762" 
1m, = & - near Chester station. - - -- 60- 62 “ 
nm * " 1} m. below Essex ---.- -- 42-45 “ 
223m.  “ . ear ferry and railroad .. 30- 31 “ 
244m “ 3 Saybrook Plain ----. ---- 20-21: 8 
26:i ani: “ i Seashore House, on Sound. 133" 
The plains, the heights of which are here given, were well 
displayed, leaving no doubt that they corresponded to the true 
terrace ; and they were the highest in each region. They show 
that, from the Narrows, the river waters plunged along with a 
pitch of several feet a mile. 
t m almost incredible that waters so violent should 
at top the material thus contributed. Moreover, we can follow 
he rise of the flood in the succession of the deposits ; in clays, 
in some places, near the bottom—one bed supplying a i 
y 
making large depositions,—except in ice-floes, and these certain 
ly did little of the transportation in the case here referred to. 
inally, how far was the height of the terraces described due 
to an elevation of the land since the beds were deposited ? ‘ 
Judging from the seashore terrace, on Saybrook point, the 
elevation of the land did not exceed 15 feet. I have not suc 
ceeded in finding other evidence on this point. 
* height of Maromas plai determined by levelling, by Messrs 
Pillsbury rig fie ge Waseven, Wotvenity. They obtained 1334 feet 
above flood-level. The extended terrace on the opposite (east) side of the river 
