127 
TAB. CCLXIV. 
FERRUM  oxygenizatum. 
Oxide of Iron. 
Class 3. Metals. Order 1. Homogeneous. 
Gen. 7. Iron. Spec. 3. Oxide. 
Div. 3. Amorphous. 
(a 
Iw the Isle of Wight, and many other places, there are 
masses of irony sand, varying in size and thickness ; some- 
times forming partly in strata, and often in curving pieces, 
which have been paris of large rounded masses, coating 
each other more or less regularly, containing much Iron, 
being very heavy. They are but just so much oxygenized as 
not to be attractable by the magnet. I have seen much of 
the same substance near Bletchingley, Surry. I thought 
to have finished this subject, and not to have given figures 
here; but having said thus much, it might seem wrong to 
leave out any thing worth mentioning. I therefore add this 
plate for two varieties of these, that less might be wanted 
towarés the completion of a work intended to contain all 
possible intelligence as to mineral substances, especially as 
the specimens are remarkable, and have not, to my 
knowledge. been noticed elsewhere. 
The upper figure is a piece from Alum Bay in the Isle 
of Wight; it is of a moderate size, for those near Bletch- 
ingley were very large. 
The lower figure is nearly of the same nature, and was 
sent me from near Dufton. It serves to show how widely 
the substance is spread, and that it has been considered by 
others at least as somewhat curious. 
