92 THE GEOLOGIST. 
" Clay Ironstone Xodules from Arigna.—lsleim of five analyses: — 
Protoxide of iron 51 '36 
Lime 1;50 
Masnesia 1'92 
Alumina 0-98 
Insoluble clay 12'82 
Carbonic acid 3r33 
100-00 
And this contains 40 per cent, of metallic iron. 
" The loss by calcining, the iron remaining as protoxide, should be 
in average 31-33 per cent. ; and the calcined ore should consist of 
100 parts of 
Iron 58-2 
Oxygen 16-6 
Lime and magnesia 51 
Clay 20- 1 
100 00 " 
(See Sir E. Kane's ' Industrial Eesources of Ireland,' p. 136.) 
COERESPONDENCE. 
Crocodilian Remains in the Scottish " Old Red^ 
Sir, — Obserringf that the report of a Scottish crocodile having been 
found in the Old Eed Sandstones of Morayshire has been commented on 
in your Notes and Queries for February, I think it right to state that no 
reptilian remains liave been recovered from any of the sandstones of that 
county, of ^vhatever age, Avitli the exception of those of the well-known 
Telerpeton, Stagonolepis, and Hyperodapedou. 
The stone containing the first of these, the Telerpeton Elginense, was got 
from a quarry near the Loch of Spynie, some two to three miles south of 
Elgin, by the late Mr. Patrick Dufl", and is now in my possession. It is 
described and figured by the late Dr. Mantell (Jan., 1852), in a paper 
contained in the eighth volume of the 'Geological Journal,' as a small 
lacertian reptile, about four and a half inches in length. 
The Stagonulepis Rohertsoni has been long known, and was so named 
by Agassiz, and is by him described, in the ' Poiss. Foss. du Vieux Gres 
Eouge,' as a ijanoid fish. The discovery of many fragments of bones since 
has enabled Professor Huxley to fix the true nature of these remains. The 
Stagonolepis is described by him, in the fifteenth volume of the ' Geological 
Journal' (1858), as a reptile having considerable affinities to the crocodile, 
and as haviutr reached from 16 to 18 feet in length. Many remains of 
bones and sc-utes belonging to this creature have been found in a quarry 
at Lossiemouth, some five mil(?s south of Elgin, and are preserved in dif- 
ferent museums, as in that of Elgin, the Museum of the Eoyal School of 
Mines in Jermyn Street, etc. 
The remains of Hyperodapedou Gordoni were got from the same quarry 
