OF THE TRADEWATER REGION. . 19 
About six miles from Princeton, and not far from the junc- 
tion of the Hopkinsville and Parkersville roads, a very large 
‘spring gushes out from the base of a reddish limestone bluff. 
Scattered all over this bluff are cedars of various sizes, which 
I mention as a matter of curiosity rather than of value, as in 
no other place in this part of Western Kentucky have I seen 
a member of the coniferous order. A few water poplars (cot- 
ton trees) appear along the streams between Princeton and 
Eddyville, but they are scattering. On the southern slopes 
of the low hills near Eddyville the white oak is quite good, 
but not remarkable. Along the Cumberland river, in addition 
to the timbers already given, hackberry, shag hickory, and 
honey locust appear. There is quite a marked change in the 
timbers on the long slopes facing the Cumberland river, near 
Eddyville. They become very heavy and fine, though the 
‘most valuable of them have been cut out. The reason of 
such change is, that we here pass from the loose rocky or 
poor shaly limestone of the Chester Group, which is found all 
along the high ridge road for two or three miles, until the 
cavernous St. Louis limestone bordering the river is reached. 
Another peculiarity noticed in the report in volume II, this 
series, observation all through this Sub-carboniferous forma- 
tion confirmed: that is, that the liriodendron (yellow poplar) 
does not grow on the upper or shaly Chester. If found there 
at all, it is very scattering, as well as dwarfed, and of no value. 
The dryness and thinness of the upper Chester soil is doubt- 
less the cause of its absence. 
After leaving Eddyville and turning toward Dycusburg, one 
passes from the St. Louis limestone into the thin Chester of the 
ridges again. Liriodendron almost wholly disappears, except 
on streams, and but little white oak is found for some miles. 
Bartram oak, some hackberry, white walnut (so characteristic 
of the Ohio river regions), sycamore, white and red elm, etc., 
are found along the streams; but the forests are not very 
valuable between Eddyville and Dycusburg. From this state- 
ment we may except the post oak, which forms 4o per cent. 
of the ridge timbers, and which is now used in making hubs 
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