236 ON THE FOSSIL TEETH OF A HORSE 
XX.— On the Fossil Teeth of a Horse found in the red clay at 
Stockton. By Joun Hoae, M.A., &e.* 
On exhibiting three molar teeth of a horse, I will only make 
a few brief remarks; and this I am induced to do because Mr. 
Richard Howse, in his paper ‘ On the Fossil remains of Mam- 
malia found in Northumberland and Durham,” printed in the 
Transactions of the Tyneside Naturalists’ Field Club, vol. v., part 
2, two years ago, says there are, “‘ very few instances yet put on 
record of the occurrence of mammalia in a fossil state in those 
counties” (p. 111). 
He then gives the following account of 
‘No. 3.—Horser, Hquus 2 
without either naming, or conjecturing the species. 

“Two molars belonging to the under jaw of a Horse have been 
discovered by Mr. Atthey in the peat deposit at Preswick Car, 
in Northumberland, but more perfect information is desirable, in 
order to be able to attest the antiquity of the species” (p 118). 
The three molar teeth, now exhibited, were dug up four or 
five feet below ground imbedded in red clay, three or four years 
since, by some workmen whilst cutting a drain near the south 
end of the town of Stockton-on-Tees. Other teeth were also 
found there, but I have not seen them, and the under-jaw itself 
was broken and destroyed. 
Professor Owen, in his ‘History of British Fossil Mam- 
malia,” mentions, at p. 888, a fossil horse molar tooth from the 
lower jaw, with ‘‘a grinding surface one inch five lines in the 
long diameter, and eight lines in the short diameter.” Again 
he adds, p. 390, “‘ Mr. Fitch has a lower molar tooth three and 
a half inches in length, found in Norfolk Pliocene deposits.” 
By comparing my specimens with those, I find two of the 
teeth to be just three inches in length in their present state, but 
the third tooth is three and a quarter inches long, and it has 
evidently been longer. The grinding surface is one and one- 
eighth of an inch in both long and short diameters of the two 
* This paper was read also to the Section C. (Geology), of the British Association, at 
Newcastle. ‘uk 

