Drift in South Dakota. — Todd. lOi 
the surface of the quartzyte. More careful exammation showed 
that a few scattered pebbles and bowlders of northern orighi 
were to be found in the crevices of the quartzyte, but nothing 
that would demonstrate that the region had ever been mantled 
with a deposit of till such as occurs elsewhere. East of town 
within a few rods, the till appears and in gravel beds found in 
that direction numerous rotten granite pebbles were found 
indicating greater age than is common within the moraine. 
About a mile east, and further to the southeast and south, are 
conspicuous knolls, largely composed of drift gravel and sand, 
resembling osars. About a mile south of the town, one of 
these has been cut into and building sand has been taken from 
it for several years. It shows several feet of gravel and pebbles 
resting upon a mass of irregularly stratified sand. In a rail- 
road cut to the east of it, there is found the unusual appearance 
of a stratum of gravel and bowlders overlain with loess several 
feet in depth, and resting upon a loess-like silt which is also 
shown several feet in thickness in some places, while elsewhere 
it is replaced by loose sand. It could not be distinctly shown 
that the lower silt was of much older age than the upper. 
IV. Preglacial Deposits in Turkey Ridge. — In the examina- 
tion of Turkey ridge, there was found, at a point about four 
miles south of Irene, Clay county, S. D., a stratum of loess-like 
loam underlying the drift and resting, judging from an expo- 
sure of that several rods away, upon chalk deposits. A rriore 
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 corrob- 
orate the idea of a preglacial silt in that locality. Turkey ridge 
is a high divide between the \'ermillion and James rivers, 
which became an interlobular portion of the Altamont moraine. 
V. Recent Fossils from near Bradley, Clark County, S. D.-l n 
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 — 
