107 
TAB. CCLYV. 
"Tue Red Ochres *, often nearly the same in appearance 
with the Yellow ones when burnt, are occasionally found, 
and I have some even mixed with Yellow Ochre from 
Cornwall. 
The upper right hand figure is perhaps a Steatitic Clay ; 
Ruddle has more Iran in it. This and Venetian Red are 
nearly alike, both depending on a mixture, as it were, with 
Red Hzematites—see tal. 56—or little else than Red Oxide 
of Iron. Both are found, or may be readily manufactured. 
The latter is a cheap and useful water colour, and the first 
answers many purposes; such as for a coarse oil paint for 
floor-cloths, or mixed with tar for paling, marking cattle, 
&c. It is of an earthy texture, rather loose, and is light 
and bright about the powdery part of the specimen. 
The left hand upper figure is found colouring. imperfect 
Schist in the Isle of Man, and was sent me by order of the 
Duke of Athol, 
The lower specimen is of a looser texture from Devon- 
shire, by favour of the Rev. A. Neck. 
The deep red specimen annexed came from the Basaltic 
Rocks near Belfast. Itis there often much indurated, and 
passes into a quartzose or flinty substance, forming Eisen- 
kiesel of the Germans, 
The lower fragment is from the Isle of Wight, and would 
nearly agree with Eisen-thor, or Iron Clay of the Germans. 
Its colour may denote it an Umber; it has, however, a 
reddish cast. It leads pretty well to the next variety, 
tab. 256. | 
* Ochres, strictly speaking, perhaps ought only to be yellow, or yellowish. 
Common language, however, warrants the use of the words Red Ochre, as 
2 name for this substance. 
