IOWA ACADEMY OP SCIENCES. 
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underlying the drift, and resting, judging from an exposure of 
that several rods away, upon chalk deposits. A more careful 
examination may possibly reveal the characteristics of older 
till in these deposits, but no pebbles were noted where it 
was studied. Reports from wells in the region seem to 
corroborate the idea of a preglacial silt in that locality. 
Turkey ridge is a high divide between the Vermillion and 
James rivers, which became an interlobular portion of the 
Altamont moraine. 
V. Recent Fossils from Near Bradley, Clark CounUj, S. D. — In 
1895 Miss Helen M. Buzzell, a teacher in the common schools, 
became interested in some curious things found in digging 
wells a few miles north of Bradley. I have not been able 
to visit the locality and can only quote from her description : 
“ The land here is very rough, showing hills, little level places 
and big sloughs, or old lake beds The well is about fifty rods 
from the foot of a hill, which, I should think, is nearly 300 feet 
high, at the head of a slough. The latter is hardly a ravine — 
rather a hollow — and here are the figures as given by the man 
who dug the well, describing the different soils as they came: 
FEET. 
1. Black loam 3 
2. Crumbly yellow clay 14 
3. White material 3 
4. Tree 9 
5. Blue clay 6 
“This is on Mr. J. D. Foley’s place, section thirty-five,. 
Spring Valley township, six miles from Bradley; there are 
others similar. ” 
The white material is evidently a white marl. It contains 
Valvata tricarinata, PlanorMs bicarinatus, P. parvus and Limnea 
humilis. Miss Buzzell sent numerous pieces of wood, most of 
which I judged to be coniferous. They show the characteristic 
tracheids and resemble tamarack. Specimens of muck. No. 4, 
contain fresh water shells similar to those in No. 3, and also 
Anadonta and Spcerium bulcatum. The data are not sufficient 
as it would seem for asserting that this deposit is inter- 
glacial, It may result from the filling of a recent lake basin. 
If such is the case, it resembles the locality north of Grand 
View, in Douglas county, which was described in Bulletin No. 
1, of the South Dakota Survey, page, 126. Both localities aro 
inside the Altamont moraine. 
