W. J. McGee—Drift Formations in Northeastern Iowa. 389 
Arr. XLIX.—On the Relative Positions of the Forest Bed and 
associated Drift Formations in Northeastern Iowa; by W. J. 
McGEE. ti 
and within ‘it are ada remains of the mammoth, the masto- 
don, of Castoroides ohioensis, Bison lafrons, and their contem- 
poraries. In most of the localities just mentioned the Forest 
Bed is overlaid by a partially stratified deposit, regarding the 
origin and age of which there is some doubt.. e condition 
of the superficial deposits in the ribaghiborliood of the residence 
of the writer is such as to throw much light on the question o 
the true geological position of this formation. A few sections 
nded. 
are appen 
I. A well in Farley, Towa. 
Stirface ‘poll 7st a eS Se 2 feet. 
Clean ay ‘wath occasional grainte mon feck ei ck . 
Olay with bowlders, gravel and flint... -.------------ 
Thin-bedded, black, pci not als clay, with fag 
ments of wood - Sans oe owe 
: Thiek-bedded do., with "‘much-alecomposed fragments a 
ood. Undisturbed by glacier -_----..----------- ‘ 
. Hard yellow clay, sometimes with bowlders. .- Posctan i e 
D ravel and small bowlders-..----:---------- 2 
: oe fiaeed ne. 
e of the wood found in this well—probably Willow 
) though not we i determined—was so well pre- 
2 PN 
oe an 
1. Surface soil... 3 feet. 
2. pe ay with occasional ua nite “bowld Aste bea Otek 10 
; Same as in I OE ee oS ee oa acne < wae aoe np 
7, | Yellow clay with sand, gravel and small bowlders --. 4 re 
é Niagara oe 
hio Geol. Rep., 1874, pt. I, vol. ii, p. 3. 
