Coal measures. Permian. 
FOSSILIFEROUS HAEMATITE NODULES IN LEICESTERSHIRE. 93 
we should expect, “box-stone,” “eyed” and other concre¬ 
tionary forms are present. The red beds above this shale 
undoubtedly furnished the colouring matter in the latter, 
and has so far affected the nodules of ironstones in it as to 
change them into a kind of haematite. I maintain that the 
process of variegating the shale and forming this haematite 
affords us an interesting case of pseudomorphism or replace¬ 
ment which has taken place in situ , in the very manner I 
think that they must have done in the Permian breccias 
(though the conditions then were different) and in the very 
neighbourhood of the haematites ; in fact, specimens of this 
Permian ore occur in the breccia of this Swadlincote section. 
Vertical Section of Rocks at Swadlincote, near 
Burton-on-Trent. 
Feet 
Surface soil and clay ... ... ... ... 
Sand, sandstone, and pebbles 
( Light yellow sandstone 
\ Breccia—in two beds—containing fragments of 
/ haematite, &c. ... 
) Red marl 
' Yellow sandstone 
/Mottled marl or “bind” crowded with nodules 
and thin bands of red haematite (often 
septarian) 
Dark “ bind ” with nodules of haematite towards 
' top 
C o al ... ... ... ... ... ... ... 
Fire-clay, called “marl” ... 
Do. best quality 
“Bottle” clay (fire-clay) ... 
Coal ... ... ... ... ... ... ... 
\^Fire-clay 
3 
2 
2 
4 
4 
3 
8 
7 
1 
3 
4 
7 
2 
2 
In 
0 
6 
3 
0 
0 
0 
0 
0 
0 
6 
6 
0 
0 
6 
About ... 54 3 
The Permian series rest unconfofmably upon the Coal- 
measures. 
I have obtained fossils ( Terebratulce , Xatica, Or this, &c.) in 
the red nodules above referred to, but I have not found any of 
these Swadlincote nodules to possess polarity ; but that the 
clay-band ironstones of the coal measures do sometimes display 
this property is certain, from the fact that the author in 1874 
picked from a large heap of “ stone ” on one of the pit-heaps 
at Hanley, Staffordshire, called the “ New Mine ” ironstone, 
a specimen, containing a beautiful bit of a lepidodendron, 
